Keep the woman and the child, their exact faces, facial features, expressions, hairstyles, poses, and clothing completely unchanged and identical to the original photo. Keep the entire background, sky, lighting, and sea identical. The ONLY element to modify is the boat/deck they are standing on: change it into a beautiful, luxurious, high-end yacht deck with polished wood and elegant modern yacht details, preserving everything else exactly as in the original photo.
