Create an ultra-detailed 8K vertical 4:5 Instagram portrait (1080 × 1350 pixels) using the uploaded girl's photo, preserving her exact facial identity, facial features, skin tone, and hairstyle. She wears a luxurious shiny hot-pink satin princess gown with dramatic puff sleeves and a white-and-gold birthday sash reading “Sara Name ” as a placeholder for the user's name. Create an identical dreamy pink-and-gold birthday party background with pink balloons, rose flowers, glowing fairy lights, an elegant pink birthday cake with golden crowns, and gift boxes. Add a large backdrop displaying “It’s My Birthday” in beautiful golden cursive lettering with a heart. Keep the composition perfectly optimized for Instagram feed posts, with the girl's full body, gown, sash, birthday cake, and important decorations visible within the 4:5 frame. Photorealistic details, premium cinematic lighting, vibrant colors, sharp focus, realistic satin texture, 8K Ultra HD quality. Keep the face as closely matched to the uploaded reference p