Thanks, Greg!
I have to say most of the praise I've gotten so far has been on the artwork. I really really enjoy it, and so do our beta testers.
I just wanted to stress it again: The game is heavily in development right now, with no clear goals and incremental updates to the (mostly broken) website - that means some features don't work, many are buggy or will lock the game, and a lot of things are very unclear. But as time marches on, things begin to come into focus and it makes some sense.
With a very limited beta (around a dozen people until this point), we've already racked up over 200 user-made levels which I'm pretty excited about.
To the future!