Ultra-realistic candid smartphone photo in a private hot spring or spa environment. The subject must exactly match the reference girl with no changes to face, body, skin, eyes, or hair. Pose, upper body close-up, slightly leaning forward near the edge of a wooden tub, one hand holding a towel naturally against the body. Expression soft and relaxed, looking toward the camera with a calm, natural gaze. Identity lock, face, body proportions, and hair must be identical to the reference girl. No modifications, no exaggeration, no beautification. Hair, slightly wet, natural strands softly clinging to skin, inherited exactly from the reference. Outfit, white bath towel wrapped around the body, natural fit with realistic fabric thickness and folds, secure and non-revealing. Skin detail, natural texture with visible pores, subtle tone variation, slight moisture and water droplets on skin creating soft highlights, no smoothing. Lighting, soft warm diffused indoor light with gentle highlights and natural shadows, slightly steamy atmosphere. Environment, wooden hot spring tub, warm water, light steam in the air, neutral stone or tile background, calm and private setting. Camera, smartphone style, close framing, (upper body), slight angle, natural grain, no HDR, no over-sharpening, realistic depth of field. Atmosphere, quiet, intimate, relaxed moment with a natural lifestyle aesthetic. Negative prompt, different face, altered body, exaggerated anatomy, revealing clothing, nudity, unrealistic proportions, smooth plastic skin, CGI look, extra limbs, distorted hands, harsh studio lighting, text, logos