Art nouveau museum, grand staircase, ornate metal railings, stained glass ceiling, intricate mosaics, elegant curved lines, luxurious velvet curtains, warm golden lighting, ornate frames, sculptures, vases, flowers, soft focus, shallow depth of field, warm color palette, low-key lighting, dramatic shadows, elegant lady, long curly hair, red dress, gloves, pearls, holding a fan, standing, admiring art pieces, close-up, facial expression, soft makeup, gentle smile.