Epic pirate battle

Fortress in the ocean surrounded by pirate ships. Above the fort is a dark storm cloud that looks like a skull with Lightening visible in the eyes and mouth. The fort is firing cannon balls out of canons at the ships and a large octopus can be seen ripping a ship so apart in the foreground.

ugly, tiling, poorly drawn hands, poorly drawn feet, poorly drawn face, out of frame, extra limbs, disfigured, deformed, body out of frame, blurry, bad anatomy, blurred, watermark, grainy, signature, cut off, draft