Portrait of a 20-year-old woman with long flowing hair, dressed in a simple white tank top and soft linen trousers, reclining casually on a modern sofa. Preserve her natural beauty with luminous skin and expressive blue eyes, captured in warm afternoon window light. Emphasize a calm lifestyle aesthetic, muted neutral tones, and crisp editorial clarity. Shallow depth of field keeps focus on her gentle smile and relaxed posture, evoking youthful elegance and contemporary comfort within a serene domestic atmosphere.