I thought that this was extremely well done. There's a truly exceptional attention to detail here. Not to mention, visually it's stunning. The contrast between light and dark is eye catching, but doesn't overstimulate. I also liked the added effect by giving the fish a slightly glowing appearance. As I said before, overall this is very well done. Your depiction of Toki is spot on also, though it isn't just a direct copy of the character model from the show. You made the character in this piece highly recognizable, but at the same time, you have your own style. Very nice job! You have a real talent!
My point in the series when I realized that I loved the show, was the moment when Murderface played bass with his dick. I remember, my thought was like "Oh, that's why Dethklok is the best death metal band in the world! I think I can't even argue with that XDDD" But the "Underwater Friends"-sequence made me fall in love with Toki though.