Futuristic submarine, sleek metallic body, rounded edges, neon blue lights, portholes, propellers, rudder, sonar dome, periscope, captain's room, control panel, radar screens, navigation charts, leather seats, metallic floor, pipes, valves, steam punk elements, distressed metal texture, rusted bolts, underwater scene, oceanic environment, coral reefs, schools of fish, seaweed, bubbles rising, sunlight filtering down, misty atmosphere, cinematic composition, low-key lighting, dramatic shading.