提示词

A handsome dark-skinned adult man sits on a black stool in an indoor setting with plain white walls and light wood flooring. He is shirtless, wearing black Nike athletic shorts, socks, and sneakers, displaying thick thighs, defined abs, and broad shoulders. His legs are spread with one foot resting on the other knee while he holds a dark smartphone to his right side, obscuring his neck in a mirror selfie composition. Bright indoor lighting illuminates the monochrome palette of skin tones against black and white surroundings. The image captures a confident athletic mood within a high-clarity fine-art photography style., shot on iPhone 15 Pro main camera, authentic smartphone computational photography, natural Smart HDR, Instagram male fitness lifestyle aesthetic, clean urban lifestyle backdrop in natural late-afternoon light, candid post-workout energy, vertical 4:5 feed crop, subtle phone sensor grain, western influencer mood, Instagram story mirror selfie, golden hour window light, natural phone grain, phone held naturally in one hand for selfie, phone visible in frame, a single uninterrupted photograph only, no written words or typography anywhere in frame, no captions, no app UI, no social-media post layout, no screenshot borders