I'd like to profess interest as well, though obviously that counts for about diddle and squat until I post something showing my characterr idea and such... but hey, its late, and I haven't had time to read very far into your setting (there's so farking much to read!).
So if you're getting this off the ground in the next day or so, I'm probably not going to get my stuff together in time. But if a spot's still open a few days from now, expect something from me (with all of those delicious demihuman options, I'm not quite sure just what yet!).
If you take the time to read through my post history, I'm pretty sure I'm worth it (I don't know if any of my last few posts are real gems, but overall I think I do a good job).
So yeah. You'll hear from me.