candid couple staircase

A highly realistic, documentary-style photograph of a young couple on an indoor staircase, looking natural and unposed. Focus on natural lighting and environmental textures. The male subject on the left is a young man with styled dark hair, wearing a dark brown unbuttoned corduroy shirt, a dark undershirt, and cream-colored relaxed-fit trousers. His right hand is naturally in his pocket. The female subject on the right has long brown hair and is smiling naturally, looking slightly off-camera. She is wearing an off-white textured (crinkle-chiffon) sheer button-down blouse with multiple buttons undone, black wide-leg trousers, and has a large tan canvas backpack with multiple compartments over her left shoulder. Her right hand is slightly raised. The setting is a standard institutional staircase with speckled concrete stairs and a brown metal handrail. The walls behind them feature a pattern of a prominent lime-green band above a darker forest green band, and a higher section of light sky-blue. Diffused natural daylight from a side window illuminates the scene, giving a natural film grain and shallow depth of field, bringing full focus to the two subjects and their dynamic interaction. High-resolution photo, natural tones

Copy the complete prompt and use your own reference photos where requested.