A bioluminescent Parapandulus shrimp
Beautiful image, right? Oh, by the way, that blue stuff is shrimp puke.
To produce these van Gogh-like swirls, the shrimp vomits up chemicals that react together to produce light. This particular shrimp was photographed in the Bahamas, during an expedition in the Johnson-Sea-Link submersible near the sea floor. The mission? To poke sea creatures and see if they would glow.