I love this game - played the first few levels and I'm addicted already.

The front page can be cleaned up a little. If possible, it would be nice if the front page displayed the thumbnails of some feature posts/items from the store (moving the posts and the navbar on the right down a bit).

And perhaps you should add some more color to your layout - I think the ads would definitely blend in better that way.. The ads just.. don't seem friendly at all right now.

Also.. have you thought about getting twitter to get more followers..?