Just to let you know I run an art exchange community on Jivejournal called Scifi Fantasy Art Exchange. It needs more members as well.

http://community.livejournal.com/sffartxchange/

The range of character designs we allow there is very large. Anything that is sci-fi fantasy and furry related is allowed. Nonmorphic fantasy creatures, furries, human faced fantasy creatures and even humans, and the same for scifi as well. Both the common fantasy creatures (like dragons for example) and stuff that is entirely your creation is allowed.

Also the community is completely open and public, plus Livejournal has an open id feature that lets you post comments without having an LJ account so you don't even need to be a member of livejournal to use it. All you need is a valid email (because the community sends the exchange info by email).