Cinematic woman

Create a photorealistic 2:3 vertical, full-body fashion portrait with a high-key white aesthetic and a subtle playful-comedy undertone. A clearly adult young woman, approximately 23 to 30 years old, stands inside a nearly pure-white seamless studio, white light-box environment, or in front of a floor-to-ceiling window completely washed out by strong backlight. Place her slightly low in the frame with extensive white negative space above her head, and include her entire body, shoes, handbag, and faint contact shadows on the floor.