Neon Underwater Ninja in a Digital Ocean City

Hyper-detailed digital painting of a ninja gliding through an underwater city. The ninja wears a sleek, high-tech wetsuit with subtle armor plates and a katana sheathed at the back, moving in a dynamic stealth pose. Neon bioluminescent corals and glowing algae illuminate the submerged metropolis, with sunlit water rays slicing through and casting swirling patterns on coral-covered skyscrapers. Schools of fish flicker like digital artefacts as bubbles rise and holographic runes drift around. The color palette is electric cyan, magenta, and deep blues. Style: cinematic concept art with crisp linework, painterly textures, and a hint of cyberpunk futurism.