Generate a real, natural, and approachable professional avatar based on the input photo, highly maintaining identity consistency, facial proportions, face shape, hairline, age sense, and original gender expression, without changing appearance. 1:1 square composition, framed above the chest, adopting asymmetric visual balance: character slightly to the right, retaining about 18% screen height above head, left and upper-left forming main negative space, avoiding ID-photo style centering and tight cropping. Natural shoulder lines, slight head tilt, looking straight at camera, relaxed, confident, friendly expression, can have natural smile or toothy grin.
Clothing adopts simple dark round neck or minimalist top, naturally adapted according to character's original style; females retain natural hairstyle, makeup, and moderate jewelry, males retain stubble, hairstyle, and other real features, no stereotypical gendered styling. Background is a real warm-toned wall: low-brightness reddish brown/caramel warm gray at top, gray-beige apricot in middle, creamy off-white at bottom, forming non-linear vertical gradient through natural light decay, wall reflection, and slight vignette; add fine, low-amplitude, high-frequency random grains, more obvious in dark areas, simulating early digital sensor and slight JPEG texture.
Use large-area soft window light, low light ratio, low local contrast, no rim light or commercial studio shaping. Skin tone maintains real hue differences and natural blood color, females avoid porcelain white skin smoothing, males avoid over-emphasizing rough texture; reduce high-frequency skin details and clarity, retain mid-low frequency facial structures, making skin soft but real. Overall low-saturation warm tone, soft highlights, slight black lift, reduced blue-cyan colors, presenting early digital avatar texture of 2000s–2010s: smart, trustworthy, relaxed, natural, approachable, rather than modern high-end commercial portrait.
