Minimalist Line Avatar Art

Convert input images into minimalist symbolic line illustrations suitable for social media avatars {argument name="ratio" default="1:1"}. The main subjects can be people, animals, or plants. Do not replicate shapes, do not depict details, do not fully outline; instead, like early murals or primitive engravings, extract the most essential expression, posture, and contour features from the subject, leaving marks with very few lines. The goal is not to paint the entire picture, but to resemble a refined symbol, whose temperament and charm can be recognized with just a few strokes.

The number of lines must be kept very low, ideally controlled within {argument name="Number of lines" default="3 to 6 records"}. Every stroke should be concise, direct, and decisive, like a seamless stroke with natural pauses and slight undullations, not mechanical, unadorned, not overly smooth, and not a modern, logo-style complete closed contour. Allow breaks, blank spaces, and omissions, allowing blank spaces to participate in expression. Don't draw facial details, fur textures, clothing folds, leaf veins, or other illustrative details; keep only the most crucial contour turns and expressive fulcrums.

The overall temperament should be simple, direct, restrained, and precise, like a primal visual language. The background should remain simple, quiet, and steady, and can be {argument name="background color" default="crimson"}, stone wall color, gray white, dark colors, or other plain colors that complement lines. The main lines should be clear, simple, and present. No realism, no shadows, no volume, no complex decoration, no modern graphic design style. The final effect should be like an extremely refined symbolic image: few, precise, fierce, and still, drawing out the subject's expression in just a few strokes.