Fish vector art

I've been playing around with adobe illustrator a lot lately (while in lockdown). I'm trying to learn new techniques and styles.

This illustration is of fish looking up at a person dipping their finger in the water. It was the result of experimenting with soft gradient glows and messing around with the gradient mesh tool.

Let me know what you think!? And for those illustrators out there, let me know how you think I could improve.