This is my first comment here.
First of all, I am speechless. I cannot believe a person that does not work for gamefreak can make so imaginative Pokemon-like creatures! Seriously, those are some of the best designs I have ever seen, the pastel colours are so sweet and eye friendly, and generally, the ideas are imaginative and ingenius!
My faves were the Stantler's (pre)evos (I always expected to see some decent ones), some of the Eeveelutions, the sound Pokemon and the Flamengo bird Pokemon. But 80% of them would be worth training, I am sure!
I am sorry to hear about that guy stealing your work! I know it must be kinda hard to get the copyright for those designs, since Pokemon are Gamefreak's idea and even if those designs are purely made by you, they are based on exisiting Pokemon (at least some of them). Still, I hope you get this guy and there is justice.
Congratulations! The only mistake that kind bugged me was that the female rival's legs were a bit too fat and long in my humble opinion. Generally, the female bodies were a bit long (except from the short fat cute lady =D). The rest was perfect.