Congratulations Larry!
I have been thinking on how we could get more people to be involved, and this is just a suggestion mind you.
In the forums for my 3d stuff the challenge entries arent voted on, the subject for the challenge is voted on and people are allowed to enter as much as they like and they can also request critique on how to improve and people will comment on them.
Perhaps at the end of the next challenge we take suggestions for a subject and vote on that rather than on a winner. Taking away the competitive nature of the challenge might make more people intersted in joining in.