Candid 8K Bedroom Portrait with Playful Expression

A structured JSON prompt for generating an ultra-photorealistic, 8K raw photo of a young woman (Polina Gagarina reference) in a modern bedroom setting. The focus is on a candid, joyous expression—looking back over her shoulder with a mischievous smile and tongue slightly sticking out—while wearing an oversized cream linen button-down shirt, captured with warm morning light and a shallow depth of field.