Create a highly photorealistic, natural smartphone birthday portrait using the uploaded photo as a strict identity reference. Preserve her exact facial features, natural skin tone, and recognizable identity without beautification. A young woman stands with her back mostly toward the camera, looking over her shoulder with a warm, genuine smile. She has long dark hair in a high ponytail and wears an elegant ivory open-back dress with delicate tied straps, a pearl necklace, small earrings, and a wristwatch. One hand touches her hair, while the other holds a romantic bouquet of pink, dusty pink, cream, and white flowers wrapped in translucent paper with a pink border. The scene takes place at home beside a muted sage-green wall. A dark wooden table in the foreground holds a white rectangular floral birthday cake, glass vases, lit candles, and a pastel pink gift bag. Warm candlelight illuminates her face, skin, bouquet, and table. Vertical 3:4 composition, eye-level smartphone photography, medium distance, generous negative space above her head. Calm, intimate atmosphere, realistic skin texture, subtle low-light noise, natural shadows. No studio lighting, no beauty filter, no artificial bokeh, no CGI, no text.