Thanks guys. Well the resin was only a mini disaster. There were a couple of stray air pockets that left holes that I had to fill. And apparently the base had a lot of air trapped in it so air bubbles are everywhere. I added some heavy gloss gel to the top for waves so now it just looks like some violent water. And because the back is completely cut off from light, it turned out darker than I wanted. I only used a single drop of food coloring but I should have used a syringe to get a much smaller drop. I also have to redo where the resin water meets to the outside of the rock cave, but that's an easy fix.
Here you can see all the air bubbles and some of the air pockets at the bottom, those can be filled and painter over.
Here you can see the heavy gloss gel, not all of it is dry yet so that's why it's not clear. Once it's dry I'll add a very light drybrush of white to get some wave crests.
And here's a little more work on the octopus