Krenz & Erqiao practice book · Area 4 of 6

Inventing and designing

This area trains making your own simplification instead of borrowing someone else’s. It has five practices: four short ones and a longer character-design assignment.

Krenz · Shape lecture · 01:08:51

“Those of us who came up through anime often lack experience of actively simplifying. … Say I’ve drawn an anime girl and I tell you to put an eagle beside her. They’ll find an eagle photo and directly imitate its whole realistic form. They can’t turn the eagle into a chibi version, or an eagle in their own personal style.”

You keepThe habit of making your own symbol for something, and ways to turn reference into new design.
It shows upWhen you invent anything: this is the illustration act itself.
CheckDoes it fit the constraint? Do the elements belong together?
My note · prepared vs liveIn the recombination lecture, most of the finished colour designs (the mouse, the shoe, the dresses, the bird outfit) were made before the stream and switched on as layers. Live, he draws the arrows and numbers, moves pieces between designs, and builds the emblem, sword and shield by copying and flipping. The pages say which is which.
Practice

Fit a subject to a shape

Start with a shape, then make a subject fit it. The shape forces you to distort proportions and invent your own way of drawing the subject.

Krenz · Shape lecture · 01:08:45–01:14:51

Before the assignment, he does the eagle himself: a few angular strokes perched on the girl’s hand, no feathers. Then a smaller bird.

A blue simplified eagle with raised wings on the anime girl's outstretched hand, and a smaller simplified bird to the right.
His simplified eagle and a second bird. 01:10:15.
Krenz · 01:10:06

“I simplify it into a shape, but I’ve taken the realistic concept and rearranged it, recombined it into a symbol of my own.”

His teacher’s assignment

Krenz · 01:11:43 and 01:11:59

“You draw a shape first, then find a way to fill it in. … Find a way to put something, some content, inside, and it has to fit the circle and the triangle.”

He draws a circle and a triangle. The circle becomes a black bear: furrowed brows, crossed forearms making a big X across the body, small feet on the bottom edge. The triangle becomes an old man’s head in profile, his long chin running along the base.

A round bear filling a circle beside a triangle filled by a profile head with a long chin along the base.
Bear in a circle, long-chinned old man in a triangle. 01:13:00.

Then a compound shape, standing in for another teacher’s exercise: a circle on a tall rectangle on a wide triangle. He turns it into a robot maid.

A blue base of circle, rectangle and triangle with first red eye marks. The same base filled in red with a face, side hair, arms and the triangle as a skirt.
The base (01:13:22), then filled (01:13:57).
Krenz · 01:14:22 and 01:14:44

“Usually its proportions get distorted, and that distortion is very much personal style. … Out of this, a personal way of drawing things as symbols gradually forms.”

When you practise

  1. Draw a circle, a triangle, or a few shapes stacked together.
  2. Pick a subject: an animal, a person, a character.
  3. Fill the shape with it. Let the shape distort the proportions, and keep enough features to recognise it.

Check“It has to fit the circle and the triangle.” “I try to make this shape work.” (Krenz, 01:12:03, 01:13:38)

My note · gapsHe gives no list of shapes or subjects, no number of attempts, and doesn’t say whether to use reference for the subject.

Fit a subject to a shape

Shape first → fill it with a subject → let it distort.

Keep asking: does it fit the shape?

Practice

Extract parts and recombine a motif

Take one ornamented object apart into pieces, then flip, overlap and rearrange them into something new: an emblem, a weapon, a shield.

Krenz · Recombination lecture · 0:01:45–0:07:50, 0:31:00–0:37:10

The problem after the study

Krenz · 0:02:06

“I can copy this object, but I don’t know what to use it for next. … So what’s the next step?”

His source is a photo of a silver-mounted, lidded jug. He outlines regions to cut, both big blocks and smaller blocks inside them, and shows about ten parts already cut out from an earlier demo.

The jug photo with pink arrows to separated cut-outs, and line drawings of parts on the left.
The jug and its cut-out parts. 0:03:16. Jug photo: source not given.
Krenz · 0:02:50 and 0:05:26

“Everyone cuts these shapes a bit differently, but mostly what we’re practising is seeing which shapes in here can be extracted. … When I extract its shapes, what matters is not matching the original, but getting the shape across.”

Once a part stands alone, it suggests new jobs. He rotates one over a drawn hand and it reads as a wrist cuff. Another hangs from a shoulder as a cape.

A cut-out rotated over a line-drawn hand to read as a cuff. A line-drawn shoulder with the handle part on it and a body panel hanging as a cape.
A cuff (0:03:34) and a shoulder piece and cape (0:03:47).

Start with an emblem, not a character

Krenz · 0:32:11 and 0:32:28

“Really, what you first need to be able to do is closer to making patterns or emblems. … With patterns and emblems, the easiest to start with are symmetrical ones.”

Live, he copies a part, mirrors it into a left-right pair, scales it, and puts another part in the centre: a winged emblem. He draws a pole and a blade, and it becomes a sword. Then an asymmetric version.

A mirrored winged pair with a central part, transform box active. A sword using the emblem as guard, with a blue blade. An asymmetric sword version with a different guard and a leaf part.
Mirrored emblem (0:33:10), symmetric sword (0:34:08), asymmetric version (0:34:52).
Krenz · 0:35:14

“Recombine, flip, then overlap to find shapes.”

Then a shield: a jug part copied and flipped into a symmetrical shape, a thick drawn border, a hole cut with drawn lines, and a figurine part on top. Where parts don’t fit, he either lays one over and cuts out what he wants, or lines it up with the edge and adds strokes of his own.

A shield shape with a thick black border and a figurine part at the top.
The shield. 0:36:30.

When you practise

  1. Pick one ornamented object. He suggests crowns and jewellery.
  2. Cut out a handful of parts, some big and some small. Lasso and copy them onto their own layers.
  3. Copy and mirror parts into a symmetrical emblem. Scale and overlap them.
  4. Draw connections, or cut away what you don’t want. Let it become a weapon, a shield or a fitting.
  5. Try an asymmetric version.

Check“The idea of what you want this thing to look like comes through.” (Krenz, 0:36:35)

My note · gapsHis cut-outs were made before the stream, so how he selected them isn’t shown. Step 2’s lasso is the obvious way, but that’s my addition. He gives no rule for where to cut or how many parts, and calls his weapon example very basic.

Extract and recombine

One object → cut parts → mirror into an emblem → connect or cut → new job.

Keep asking: which part do I take, which part do I join on?

Practice

Keep the silhouette, change the inside

Hold an outer shape fixed and change only its internal cuts and theme, so you can see what those two decisions do on their own.

Krenz · Recombination lecture · 0:08:12–0:27:42

Three decisions in any design

(1) The silhouette. (2) The internal cuts: where sleeves end, the neckline, panels, upper versus lower. (3) The theme: the common source the shapes come from.

Board showing a black silhouette outline, blue internal cuts and red notes.
Silhouette in black, internal cuts in blue. 0:08:38.

His counter-example is his own old habit: sporty stripes, classical carving, sci-fi lines and a flower, all on one outfit.

A figure with unrelated motifs: sailor collar, sporty stripes, a curled chest ornament.
Unrelated motifs on one outfit. 0:11:15.
Krenz · 0:11:45

“It’s called having no core attribute, or core theme.”

Fill in the blanks

A mouse already has a silhouette and regions: buttons, shell panels. He numbers them and fills them using only the jug’s parts. A high heel works the same way.

Jug parts circled with arrows to a coloured mouse, and a mouse outline with numbered regions. A shoe photo with silhouette, internal cuts and numbered regions, beside the jug-themed shoe.
Mouse regions numbered (0:15:40). Shoe regions numbered (0:16:58). The coloured results were prepared earlier. Shoe photo: source not given.
Krenz · 0:15:27, 0:15:47 and 0:17:23

“What you’re doing is a bit like a fill-in-the-blanks question. … You use only the elements available here and fill in the content under constraint. … It’s not that it has to be one particular way to be right.”

Outfits, and moving pieces between them

He shows four jug-themed outfits he made earlier. Live, he moves the helmet from one to another, and combines a wing part with the helmet. He calls it permutation and combination.

Four red and gold outfit variants. The helmet being moved onto another variant with a transform tooltip.
Four variants (0:24:35). The helmet moved live (0:24:06).
Krenz · 0:22:35 and 0:24:48

“It’s all extracted, under constraint, from one fixed object, so your elements don’t end up a mess. … In this training the core principle is that your elements should be fairly consistent.”

Same outfit, a different source

He outlines a bluebird’s wing pattern, then shows the same outfit themed on the bird: wing bands on the cape and sleeves, the head stripe moved to the hat.

The red-hat outfit, bird photos, the same outfit as a blank line drawing, and a blue-bird themed version.
One outfit: jug theme, blank, bird theme. 0:27:05. Bird photos: source not given.
Krenz · 0:27:18

“With the outer contour held fixed, how do you swap two and three? … The big shape stays, only two and three change. How do I replace them?”

When you practise

  1. Take a silhouette: a garment, an object, or one of your designs.
  2. Mark its internal regions and number them.
  3. Pick one source, an object or an animal. Fill the regions using only its elements.
  4. Keep the silhouette and do it again with a different source.

Check“Your elements should be fairly consistent.” It should read as one complete theme. (Krenz, 0:24:54, 0:26:50)

My note · gapsThe outfits were prepared, so designing a whole outfit live isn’t shown. He doesn’t say how many variants to make or how to judge “consistent”.

Keep the silhouette

Fixed outline → number the regions → fill from one source → swap the source.

Keep asking: with the outline fixed, how do I swap the cuts and theme?

Practice

Trace another artist’s transformation

Study a finished design by working out where each of its features came from in the source, and what was done to it.

Krenz · Recombination lecture · 0:27:49–0:30:56, 0:37:16–0:41:10

He opens another artist’s character, a blond king in a blue cape, with its source object: a jewelled egg-shaped ornament. He traces the ornament’s pattern to the cape lining. Then, live, he cuts off the ornament’s bottom, flips it, and puts it beside the crown.

Another artist's king character with the source ornament inset and an arrow from its pattern to the cape lining. The flipped piece of the ornament placed near the crown.
Pattern to cape lining (0:28:21). The ornament’s base, flipped, beside the crown (0:28:46). Character and ornament: an artist he doesn’t name.
Krenz · 0:28:26 and 0:28:54

“Cut this bottom part off, flip it over, and it actually looks a lot like a crown. … Its elements are basically flipped out of this object, combined using horizontal flip, vertical flip, taking apart and recombining.”

Krenz · 0:29:42 and 0:29:59

“Finding shapes first needs awareness, and then enough examples to build it. … Which bit was extracted for the shoulder? Where did the cape come from? That’s what you need to look at.”

He does the same with his teaching assistant’s design, tracing a jug part to the cape and the jug’s pattern to the stockings.

The assistant's caped character with lines from jug parts to the cape and stockings.
Parts traced into the assistant’s design. 0:30:52. Design: Krenz’s teaching assistant.

The advanced version

Some artists use the source to change the silhouette itself: a part enlarged into floating equipment, or a ring around the figure. He demonstrates it quickly, and says it isn’t his strength.

A jug part enlarged and floating beside a figure. An orange ring with spikes drawn around a figure.
Floating equipment (0:39:02). A ring from a headdress source (0:40:30).
Krenz · 0:40:45

“They find silhouette ideas directly in the object. But that’s more advanced. I’m not that good at it myself.”

When you practise

  1. Find a design where you can see or guess the source: a character based on an object, an animal or a theme.
  2. For each feature, ask which part of the source it came from.
  3. Note what was done to it: flipped, scaled, cut, given a new job.
  4. If you like, try one of those moves yourself on the source.

CheckCan you say where each feature came from? (Krenz, 0:29:59)

My note · gapsHe doesn’t say where to find designs that show both source and result, beyond browsing Pinterest, or how to check a guessed source.

Trace a transformation

Design + source → feature by feature → what was done to it.

Keep asking: where did this part come from?

Practice · from demo · longer

Character design from a brief

Design a character from a brief that combines an animal with a human role and personality. Recruit the animal’s own features to stand for human ones, then push the proportions.

Krenz · Shape lecture · 01:14:51–01:19:19

Krenz · 01:14:51 and 01:14:59

“Here’s an example that comes up a lot: if you had to draw a lead like this yourself, you’d get stuck. … A rooster who works on Wall Street, an elite white-collar securities executive. A highly paid man with taste, usually goes to work in a suit. And he often looks down on people.”

The animal’s features become the human ones

The comb becomes a swept-back quiff. The wattle under the beak becomes a beard. The eye narrows into a sneer. The body is in a graduation gown, a wing-hand holding a folder.

Rooster head with the comb drawn as a quiff and the wattle as a beard. The rooster in a long robe holding a folder.
Comb as hair, wattle as beard (01:15:50). In his graduation gown (01:16:10).
Krenz · 01:15:35

“They might use the comb’s shape to stand for a hairstyle, making their own symbol, simplifying it themselves … and use this part underneath to stand for a beard or something.”

Once he’s an office worker, Krenz erases the big comb, redraws it as slicked-back hair, and adds small glasses.

The rooster with slicked hair and small glasses.
Slicked hair and glasses. 01:16:40.

Push the proportions

“A few years later he’s become this.” He draws a second version, then lassos the body without the head and scales it much wider, giving a big round torso under a small head.

Lasso around the second rooster's body with a transform box. The slim rooster beside the wide round rooster.
Lasso and transform on the body only (01:17:33). The two versions (01:17:52).
Krenz · 01:17:23 and 01:17:42

“Or we take the proportional relationships here and strengthen and exaggerate them. … Make the proportions wider, narrower, thinner, longer.”

Krenz · 01:16:29

“Drawing anime girls, you’d normally never practise this.”

When you practise

This is a longer assignment: a design session, not a quick drill.

  1. Write a one-line brief: an animal, a job or role, and a personality.
  2. Draw the head. Recruit the animal’s own features to stand for human ones: hair, beard, accessories.
  3. Add body and costume for the role.
  4. Make a second version with pushed proportions. Lasso and transform parts wider, narrower, thinner or longer.

CheckNone stated. He frames this as the challenge you meet after copying, on the creation side (01:18:35).

My note · what’s mine hereHe shows one example and sets no assignment. Making it a practice is your call, and the steps are mine. He doesn’t say how to choose which features map to which traits, how far to exaggerate, or how to convey the personality. The brief says suit, but he only draws the gown.

Character from a brief

Animal + role + personality → its features become human ones → push the proportions.

Keep asking: which of the animal’s features can stand for this?

LLM-assisted layouts and some labels. · more notes