A realistic portrait of a 30-year-old woman with shoulder-length wavy brown hair, wearing a cozy beige sweater. She is seated in a thoughtful, melancholic pose with her arms resting on her knees. The lighting is cinematic, with soft, dramatic shadows emphasizing her facial features, creating a reflective atmosphere. The background is pure white, minimalistic, and neutral, highlighting the warm color tones and emotional depth of the image. The focus is on capturing the intricate details of her expression and the mood of quiet introspection."