Bioshock character, Big Daddy, underwater city, Rapture, dystopian, Art Deco architecture, Splicer enemy, Little Sister, ADAM syringe, steampunk elements, brass textures, riveted metal structures, leather suit, drill arm, glowing eyes, menacing pose, neon signs, leaking pipes, sea life outside windows, murky water, dim lighting, eerie atmosphere, 3/4 view, detailed environment, high contrast, dramatic shadows.