I think the critique system could use a significant improvement to liven up the site a bit.
The three icons encouraging weekly critiques are rather useless. It would be great if every time we complete three critiques, we had the opportunity to post one of our drawings for the community to react to. This wouldn't render the subscription system useless and would re-energize the community.
Such a reward would make the community more vibrant and prevent it from always being the same people, haha.