Create a Pixar-style 3D scene of a couple exploring a lush tropical island

Create a Pixar-style 3D scene of a couple exploring a lush tropical island. The couple, dressed in casual summer attire, is snorkeling in crystal-clear waters with colorful fish and coral reefs around them. In the background, show a pristine beach with palm trees, a thatched-roof hut, and a gentle sunset sky. The scene should radiate excitement and the beauty of tropical adventure.