Photorealistic Library Portrait Prompt for GPT Image 2.5 and Nano Banana

Realistic iPhone photo style, portrait of an Asian woman reading by a library window, natural light handheld shot, slight noise, realistic skin texture. Subject: Asian woman around 26 years old, black long hair in a low ponytail, light makeup, skin retaining pores and natural texture, no excessive smoothing, no plastic look. Expression: Head down focused on reading, slight smile. Clothing: Off-white knit cardigan, light gray short-sleeve inner shirt, dark straight-leg trousers, black flat shoes. Pose: Sitting at a wooden table by the library window, one hand turning pages, one hand resting on chin, body slightly turned towards the camera. Props: An open book on the table, a paper cup coffee, thin-framed glasses. Environment: Foreground is blurred corner of bookshelf and green tree bokeh outside window, midground is person and wooden table, background is rows of library shelves and sunlight outside floor-to-ceiling windows. Lighting: Natural window light as main source, coming from left side of subject, color temp approx 5000K, indoor warm lights as fill. Camera: iPhone 15 Pro main camera 24mm, f/1.78, handheld shot, vertical composition, medium shot from upper body to above knees, shallow depth of field, background bokeh. Color grading: Natural white balance, slight warm tone, film grain, details preserved in shadows. Mood: Quiet focus, literary atmosphere. Style: Realistic photo, not illustration or rendering. Quality tags: highly detailed, photorealistic, natural skin texture, candid photography. Negative constraints: No oil painting, No anime, No 3D render, No deformed hands, No plastic skin, No over-smoothing, No text watermark.