Elegant Nightlife Portrait: Beautiful Woman on Rooftop Balcony

A medium shot of a beautiful woman with long, voluminous, wavy dark blue-black hair, looking back over her shoulder with a soft smile and red lipstick. She is wearing a tight, backless black silk dress, holding a glass of sparkling champagne. The shot is captured at eye-level on a high-rise rooftop balcony with a glass railing. The setting is a sprawling cityscape at night, lit by countless warm golden lights. Soft ambient portrait lighting illuminates her face and back. Deep black, midnight blue, and amber colors dominate. Detailed textures of glossy silk, smooth skin, and clear glass are visible. Elegant and sophisticated mood, extremely shallow depth of field creating a beautiful soft bokeh background of distant city lights, sharp focus, photorealistic.