都市背心街头肖像

Create a photorealistic vertical street-fashion snapshot of an adult young woman standing in a gritty urban underpass alley during soft morning daylight. She has {argument name="hair color" default="peach blonde"} shoulder-length slightly wavy hair, a slim build, and wears a {argument name="tank top color" default="heather gray"} sleeveless ribbed tank top with loose dark indigo wide-leg jeans and a beige canvas belt with a long hanging strap. She faces the camera in a relaxed casual pose, one arm down and the other hand lifting the hem of her tank top slightly to reveal her lower midriff and navel, giving a playful candid fashion-photo feeling. Her face is intentionally obscured by a plain skin-tone rectangular blur for anonymity. The setting is a narrow Japanese-style city passage beneath elevated train tracks or concrete infrastructure, with stained concrete walls, white brick tiles, overhead beams, exposed pipes, faded posters on the wall, and two bicycles parked along the left side. Use natural film photography aesthetics, 35mm lens perspective, muted colors, soft contrast, shallow-to-moderate depth of field, realistic skin and fabric texture, documentary street style, full torso to upper legs framing, vertical 2:3 composition, no text, no logo except a tiny subtle sparkle watermark-like mark in the lower right.