Underwater Neon Ninja: Digital Art Dive

A sleek ninja in a tight hydro-dynamic stealth suit glides through an underwater ruin. Digital art style with crisp, luminous brushwork. Bioluminescent corals and submerged neon tubes illuminate the scene in electric blues, cyans, and magentas. The ninja wields a glowing katana, trailing bubbles as he moves, his mask visor reflecting shimmering reef life. Ancient stone pillars encrusted with coral frame the background, a sunken temple, and schools of tiny fish darting by. A manta ray swims across the mid-distance. Light shafts pierce the water from above, creating caustics and a sense of depth. Composition: cinematic, slightly low-angle wide shot focusing on the ninja in the foreground with the underwater city softly blurred in the distance. Mood: stealthy, epic, mystical. High detail, soft depth of field, water caustics, and neon glow.