Little girl in a royal blue sequined ball gown

High-resolution 8k (3:4) portrait of a smiling little girl in a royal blue sequined ball gown with puffed sleeves and a floral-embroidered sparkling skirt. Curled half-up bun with pearl pins, silver necklace and bracelets, twirling pose on marble floor in a warmly lit indoor hallway with wall sconces and blurred beige doors. Suitable for family portraits or stylized children's fashion photography. Ensure any image-generation platform you use supports family/child content and preserves the original face if requested. Insert discreet watermark in the lower right corner of the image, vertical text (rotated 90°), written "aipromptlabs.online", Calibri Light font, white color with low opacity (semi-transparent), medium size. Extreme sharpness on the face, fabric texture and typography of the letters. Shot on Canon EOS R5, 50mm f/2.8, studio light.