Choose which proportions to exaggerate.

A long coat and narrow frame can make an adult character read differently from a short jacket and broad shoulders. Large hands may suit a mechanic whose work depends on tools. Long legs can create a fashion-illustration silhouette. Start with the character’s role and visual style rather than a list of body adjectives.

Write one sentence explaining the design: “A mature fantasy courier with long legs, broad shoulders, and a compact travel coat.” If you cannot identify which features matter most, simplify the sentence. Too many competing exaggerations make it hard to tell whether the model followed the brief.

Do not use youthful facial or school-age cues to balance an exaggerated adult body. Establish adulthood through the whole character: face, role, wardrobe, and context. An age label in a prompt does not repair an image that looks underage.

Choose a primary feature, a supporting feature, and a stable reference feature. For a broad-shouldered character, the shoulders may be primary, the coat shape supporting, and the head size stable. When reviewing variations, inspect them in that order rather than chasing whichever detail looks most impressive.

For a full-busted adult character, describe garment construction and torso balance along with the silhouette. A fitted jacket, high-neck blouse, or structured dress supplies different shape information. Keep the composition non-explicit and inspect whether seams, arms, and torso still connect coherently.

Ratios can help an artist interpret a brief, but a text-to-image model may not follow exact measurements. If the deliverable needs fixed head-to-body or limb-length ratios, create a measured drawing or have an illustrator refine the concept. Do not sell the generated image as a precise model sheet.

Proposed prompt: “Original fictional adult fantasy courier, mature face, long legs, broad shoulders, compact waist-length travel coat, practical trousers and boots, upright relaxed stance, full body, simple background, clean stylized anime concept art.” This is an example brief, not a tested output or a guarantee.

Generate the neutral pose first. A low camera angle can make the legs appear longer without changing their actual design; a wide sleeve can exaggerate shoulders through clothing alone. Those effects may be useful in a finished illustration, but they make the base proportions harder to evaluate.

Once you accept a base concept, add one action, such as holding a folded map. Keep the identity and silhouette description unchanged. If the action changes the body shape, return to the accepted reference rather than escalating descriptive terms.

Stylization can lengthen a limb or enlarge a hand while keeping a readable connection between parts. An extra elbow, a wrist attached at the wrong place, or a hidden duplicate limb is an error unless you intentionally designed a nonhuman anatomy. Review the structure before deciding the image is stylized.

Trace the major forms visually: head into neck, neck into torso, upper arm into forearm, thigh into lower leg. Clothing can conceal a connection, so use the visible folds and outline as clues. If a pose is ambiguous, ask for a simpler pose instead of assuming the anatomy is correct behind the fabric.

Check how the character meets the environment. Feet should have a readable relationship to the ground, hands to props, and the torso to a chair. A coherent silhouette can still contain a contact error that becomes obvious as soon as the image is used in a game interface.

Garments can amplify or obscure the chosen proportions. A floor-length coat hides the leg shape you may be trying to establish. Heavy shoulder armor can make an ordinary frame appear broad. Decide whether the character’s body or the costume is responsible for each important outline.

Write the garment cut as part of the brief and keep it fixed while evaluating the body. A new jacket in every generation makes silhouette comparison unreliable. If you later change the outfit, review the body again instead of assuming the accepted design survived underneath.

For exaggerated forms, plan a manual garment pass. Fasteners, seams, and folds may not agree across the body. A finished concept needs intentional clothing construction, if a costume maker or 3D artist will use the image as a reference.

Put the images at the same display scale and compare head size, shoulder width, torso length, and leg length. Do not judge from different crops. A waist-up portrait and a full-body image answer different questions and can conceal proportion drift when viewed separately.

Mark each variation as accepted, repairable, or rejected. A repairable image might preserve the body but have a bad hand; a rejected one might have beautiful lighting but a different silhouette. Decide which defects you can fix before you spend more tokens producing similar candidates.

Use references only where the selected model supports them. A character reference may help preserve the person while a pose reference influences structure. Neither is a substitute for a final consistency check, and different model choices may respond differently to the same source.

Save the concept with a short note naming the two exaggerations you approved and the features that must remain unchanged. Add separate notes for errors. Avoid an instruction such as “make everything like the image” when the image contains details you already know are wrong.

If the next step is a comic or animation, ask for a consistent drawing before producing dozens of scenes. If it is one profile illustration, a careful crop and editing pass may be enough. The intended output determines how much cleanup is necessary.

Use original adult fictional designs and authorized references. Review the destination’s content rules before publishing. A non-explicit design brief can still require editing or disclosure for the platform where you intend to use it.