Dark blue Abyss, Subnautica, alien ocean, eerie glowing plants, bioluminescent mushrooms, giant kelp forests, twisted coral reefs, sunken ship ruins, abandoned underwater facility, Seabed habitat, lifepod escape vessel, deep sea creatures, anglerfish, Reaper Leviathan, Ghost Leviathan, Sea Dragon, underwater exploration, 3/4 composition, cinematic lighting, foggy atmosphere, mysterious ambiance.