Cozy Children's Birthday Portrait

Realistic portrait photo of a {argument name="age" default="[Age]"} years old young girl [Use the uploaded image as reference] wearing a textured fluffy white faux fur coat. She holds a cupcake with white frosting and a lit number {argument name="age candle" default="[Age]"} candle. Soft natural window lighting from the left. Warm, neutral color palette of whites, creams, and soft beiges. Medium close-up composition with a blurred background of sheer curtains. Peaceful, innocent mood. High resolution, photorealistic, vertical portrait, 4K.