Wow, I can't believe how detailed this is! I'm really surprised you didn't win some award for this. Then again, I don't know how that process even works. You deserve the high score. The skull itself is great, but then there are all these other things around it. I now realize those are supposed to be waves.
I'm not even quite sure how this symbolism works. For all I know, you made everything up here. Even if you didn't, you deserve tons of credit for it. These monsters are so detailed they look like buildings. They just seem to be part of the background. It's great to have depictions that fit so well.