Sci-Fi Deep Sea Submarine Poster

A cinematic Japanese sci-fi anime poster for a deep-sea exploration film titled Abyss Horizon, showing a massive armored research submersible labeled NEREIS-01 gliding just above the ocean floor while two bright cyan searchlights cut through the darkness, and behind it looms a gigantic bioluminescent abyssal organism like a glowing many-tentacled sea flower rising from the trench, ultra-detailed hard-surface machinery covered in panels, rivets, cables, algae and sediment, tiny seafloor probes and corals for scale, dark midnight-blue underwater atmosphere with teal and electric-cyan glows, suspended particles, volumetric light beams, ominous foggy depth, dramatic low-angle wide shot, centered heroic composition, highly detailed manga-anime concept art, painterly yet crisp linework, textured brush rendering, realistic underwater lighting, epic mysterious mood, polished theatrical key art with elegant Japanese title typography and small technical captions.