Turn the input image into a minimalist single-line illustration for a social media avatar, 1:1 by default. The subject may be a person, cat, dog, other animal or plant. Extract its most recognizable outline and key features and distill them into an artistic single-line portrait. Keep its spirit, not a mechanical trace.
[Subject] Person: keep face shape, forehead, nose bridge, mouth, chin, ears and hairstyle, with only a few essential features. Animal: keep head shape, ears, muzzle, eye expression and the broad flow of the fur, no fine fur detail. Plant: keep the most recognizable forms of flowers, leaves, branches or fruit, capturing posture and rhythm.
[Line] Smooth, rounded, expansive, natural lines, as continuous as possible, one flowing stroke with an improvised feel. Mostly soft curves; no stiff logo-like outlines, no broken or overly regular lines.
[Composition] Square layout, subject clear and centered or slightly off-center, with enough margin so key parts survive a circular crop and read well at small sizes.
[Background] Do not default to blue. Choose a deep, clean solid color drawn from the image's own palette (deep blue, green, purple, brown, gray, wine red, ink black, blue-gray, dark olive), cool or warm to match the image. If the user specifies a color, use a deeper, calmer version of it. Avoid neon or dull, muddy tones.
[Line color] Thin white or light lines that contrast clearly with the background; light, clean, not too thick or too faint.
[Accents] Add a few small, playful colored accents (dots, arcs, stars, smiley faces, short strokes, lightning bolts, simple shapes), sparse, loosely random, never dominant, in harmonious or accent colors such as yellow, orange, pink, lavender or light coral.
[Goal] Minimal, light, modern, lively and artistic; eye-catching and collectible.
[Avoid] Realism, shadows, volume, complex textures or scenes, mechanical tracing, overly bright or dull backgrounds, too much decoration.
Aspect ratio 16:9
