Backless Evening Dress Hotel Portrait

Create a realistic editorial fashion photograph of an adult East Asian woman in a high-rise hotel room at night, standing with her back to the camera in front of a large floor-to-ceiling window overlooking a dark city skyline full of small building lights. She wears an elegant ivory satin backless evening dress with a deep low-cut back and a visible rear zipper; the dress fabric is glossy and softly wrinkled around the waist and hips. Her pose is natural and candid: torso turned away, head turned over her left shoulder toward the camera with a slightly worried, intimate expression, lips slightly parted, eyebrows subtly raised, and direct eye contact. Both hands are behind her lower back, carefully pulling up or fastening the zipper, with believable hand anatomy and fingers gripping the zipper area. Her dark brown hair is styled in a loose updo with soft stray strands framing her face, small earrings visible, natural makeup, warm skin tones, and detailed shoulder blades and back contours. The room is dim and upscale, with beige walls, carpeted floor, a window frame, a small round table partially visible on the left, a sofa edge on the lower right, and a warm wall light or lamp glow on the right side. Use warm indoor lighting mixed with cool night city light, shallow depth of field, realistic skin texture, natural shadows, cinematic composition, vertical 4:5 framing, photographed at eye level from slightly behind and above the waist. Ensure the image feels candid rather than staged, with consistent gaze, anatomically correct shoulders, arms, hands, fingers, zipper placement, and dress seams. No extra people, no text, no watermark, no distorted limbs, no overly airbrushed skin.