The contest sounds really great and I'd like to enter, but I'm not really happy with this part of the rules:
Because of this, by entering you are agreeing to let Virtuadopt use your entry for as long as we want to, and no one else can ever use it on any other website.
I understand that I have to give VA the right to use it, but why can't I use it for other sites (like deviantart) aswell? Or are you just talking about other adoption-sites?
I just don't like the idea of putting a lot of work and thought into a new creature and (hopefully) creating something I really like... and then never being allowed to use it again in any form D: