Create a cinematic, soft-focus portrait of a young...

Create a cinematic, soft-focus portrait of a young woman with long, straight light-brown hair, standing in a grand, sunlit European palace ballroom. She is wearing a slim-fitting, floor-length light blue satin gown featuring a square neckline and an intricately beaded or sequined bodice that catches the light. Setting: The background is an opulent, classical room with tall marble columns, ornate gilded furniture, and vintage wall