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freshly generated candid Xiaohongshu lifestyle photo, brand new full-body composition with a different pose, camera angle and background, both hands relaxed, not a mirror selfie, not a copy of any reference image, green sleeveless tank top (pulled diagonally across torso), black athletic shorts, highly muscular, defined abs, broad shoulders, authentic social-feed lifestyle mood, reference lighting and color treatment: olive green tank top pulled to expose torso, black shorts, dark gray wall background, framed artwork above subject, 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