Biomechanical Leviathan in Pandora's Alien Ocean

Epic cinematic ultra-wide underwater shot of a colossal whale-shaped biomechanical exploration leviathan moving slowly through the alien oceans of Pandora, its scale immense like a floating city, dwarfing coral mountains and towering underwater rock arches. The machine's design blends advanced sci-fi engineering with organic Pandora aesthetics massive smooth armored plates shaped like whale anatomy, flowing biomechanical structures, glowing bioluminescent blue energy veins running across the hull like living arteries. Enormous transparent observation domes along the front and sides reveal faint interior lights and silhouettes of explorers inside. The leviathan glides silently through vast alien coral forests, stirring currents as schools of luminous fish scatter around it. Giant alien sea creatures circle in the distance, emphasizing the scale of the machine. Smaller exploration submersibles launch from docking bays along its sides, appearing tiny compared to the massive hull. The environment is filled with towering coral formations, alien kelp forests, glowing jelly like organisms, drifting plankton clouds, and floating particles that catch the light. Bioluminescent plants illuminate the seafloor below. Above, faint sunlight filters down from the distant ocean surface, creating soft volumetric rays that fade into deep blue darkness. The leviathan's glowing systems cast cool blue light across the surrounding water, reflecting off metallic surfaces and the alien reef structures. The composition emphasizes overwhelming scale and slow majestic movement, with the machine stretching across the frame like a mechanical ocean god. Ultra-cinematic sci-fi realism, hyper-detailed biomechanical textures, glowing bioluminescence, deep ocean atmosphere, drifting bubbles and particles, epic sense of discovery and exploration in the alien oceans of Pandora.