Yeah here's my two cents.

The center top is Seel, specifically it's tail. The top right is Mew. The middle left is Dratini, but I'm not too sure on this one. The middle center is probably Seadra. The middle right is either Jynx or Mr. Mime. The bottom left is squirtle, but I'm not too sure. The bottom center is Weedle. The bottom right is Clefairy. The top left I'm clueless on though.