This is a curiosity, and not meant to sound rude. I was wondering, as I wanted to sell t-shirts also, how you are selling copyrighted material, pokemon, legally? Under the copyright protection and infringement law, you can't. Do you have an agreement for royalties, to go towards the owner?
I'm going to be a nerd and second Nocturne; only the genus in the scientific names should be capitalized, the species should be lower case. So it'd be Vulpes flareus, Vulpes vaporeus, etc, italics included. Love the idea though, nitpicking aside!
Mistook the price tag. Normally shirts on teeturtle cost more. This one costs only 5 dollars more than on Teefury. If teefury isn't making a profit, I would like to know how they are still around. Considering they are, I think 10 dollar shirts actually is still profitable.
Very creative design but if you are trying to do something similar to what happens in evolution, you should write the species name in the correct form... as in Vulpes flareus, for example; it would look closer to a real cladogram x)