Prompt: A steampunk rendition of Captain Ahab wearing biomechanical enhancements from the neck down, grasping a harpoon and standing on the deck of the Pequod facing the vast ocean under a night sky lit by the aurora borealis, envisioned in the styles of H.R. Giger and Jacek Yerka, detailed prosthetics, organic machinery, dramatic lighting, retro-futuristic, artstation.