It's an interesting shot. There is much detail and color in the foreground (black) area that may be worth a bit of additional work. Also brings out more color in the tails of the Angel fish.Also a touch of sharpen as well. That's quite a crowd. Must have been fun to watch.
None of the ideas expressed above are actually mine. They are told to me by Luthor and Ferdinand, the five inch tall space aliens who live under my desk. In return for these ideas, I have given them permission to eat any dust bunnies they may find under there.
Very nice! I can only guess that you don't get shots like this by accident. It's sharp and well exposed. From the film days we're so used to seeing the lack of reds at that depth, I don't know if the current thinking is to try to color correct for that or leave it naturally cyan. I'm sure this shot is great either way. Thanks for sharing.