Also, something to consider for both you and HoF, what if Mysidia were to eventually be modular? This way you could have one instance that could be cloned per user, and then modules could be added to expand site features. Such a system would have to wait until Mysidia itself is finished, I imagine, so that would be years away.
Also consider advertising your site on
VirtualPetList.com, a forum site dedicated to all pet games, adoptables, pet sims, etc. They have a sizable user base made up of pet site owners, pet site artists, reviewers, and fans.