This is cool! I was confused how to get going at first and didn't realise it was a step-by-step wizard I had to follow, plus I only watched the demo video briefly. I loaded the human then clicked around the main area and couldn't get anything to happen, and almost gave up.

Suggestion to help with this: Instead of starting with a blank slate, start right at the end of the process with the human model loaded and animated, then the user can go "back" and change things once they've seen the kind of results they can get.