That's some tasty tasty lighting, and excellent work on the water! Wouldn't have known you had any issues, it's really well done. I think the only issue with it, and it's a minor nitpick that I wouldn't even say counts as a real critique, but the bottom left corner waves look a little too uniform in a way, where perhaps it could be broken up and more uneven?
I don't know how to explain it, but it's literally the only issue I have when I look at this, but again, take it with a grain of salt, that's just me, and it is about as nitpick as it can get. The rest of this piece is amazing.