A stunning underwater diorama featuring a three-layered cake with a vibrant marine theme, topped with a majestic black pirate ship sailing across the top. Below, the menacing tentacles of a massive Kraken emerge, intertwining through the cake's layers in an artistically captivating manner. The scene is set within a beautifully designed universe where intricate details and dramatic lighting bring the enchanted ocean depths to life, showcasing hyperrealism and photorealistic textures. The depth of field adds to the allure, with each layer of the cake revealing mesmerizing marine life and underwater treasures, enhanced by the advanced capabilities of Unreal Engine in exquisite 8k resolution.