To hide from the wannabe Van Hellsings, the undrownable vampires have build their city inside an everdark sea cave. Guards live in the evershady cliff rooms outside.

Deeply saturated pitch black (deep ocean darkness under water :1.3). under water Canyon: gothic dark black (vampire cliffside building structures:1.5) built onto the (canyon cliff rocks:1.3) with massive walls. The (only orange light:1.3) comes from some of the castle's windows. (water bubbles:1.5) ...

ugly, tiling, out of frame, blurry, blurred, watermark, grainy, signature, cut off, draft, water surface, sunlight, moonlight, violet light, turquoise light, white light, clouds, light from above, plants, blue light