Intricately designed diorama featuring a three-layered underwater cake centerpiece, topped with a photorealistic black pirate ship. At the base, a menacing Kraken emerges with dynamic tentacles, set against a gorgeously rendered cosmic ocean scene. Dramatic lighting highlights the hyperrealistic textures, with exquisite details emphasized by the depth of field. Rendered in stunning 8k resolution, capturing the immersive experience through Unreal Engine, bathed in an ethereal glow that brings this fantastical aquatic universe to life.