I won't get mad if you do the same. The fact that I fav'd it means that I thought it was a cool/funny/well-drawn picture. I've seen some people get down when someone favs them and leaves no comment. I don't really get why, but this journal was made for them. Take pride and the fact that I liked your work better than a lot of other people's, and respect that I'm a lurker.
No need to thank me for my favs/watches. I should be the one thanking you for creating a wonderful/true to the character/funny picture, but I don't do that either other than faving it. After all, I'd just rush through all the comments and all you'd get would be more short comments like "Cool". So... we're even, heh. The exception to this is if your description actually says you want critique, and I can actually find something wrong with your piece. (What bugs me is when people ask for critiques and then get defensive when you give them, no matter how tame it was.)
That is all. Thanks for stopping by.