Create a surreal, highly detailed composition of a tropical paradise encapsulated within a halved coconut shell. The interior of the coconut features a pristine beach scene with crystal-clear turquoise water, a small wooden hut surrounded by lush palm trees, and a backdrop of a bright blue sky with fluffy white clouds. The ocean inside the coconut overflows, forming a waterfall cascading onto a sandy base below, creating a seamless connection between the miniature world and the outside environment. Dolphins leap gracefully out of the water inside the coconut, adding a lively and dynamic element to the scene. The outer shell of the coconut is textured with realistic fibrous details, contrasting with the smooth and glossy inner surface. The overall aesthetic is whimsical and vibrant, with a perfect balance of realism and fantasy, set against a clean gradient background