Another scuba-themed request from "Robert-Butler-2" of DeviantArt, this time with Amy and Asaya from Hello Kitty: Let's Learn Together.
I guess they're learning all about the ocean and the variety of life within it.
Anyway, he said this would be his last such request before retiring. Let's hope that's right, and let's also hope you like this as much as he does.

Fan art by me, characters by Sanrio