I did this last night as a sort of challenge to myself, since I pretty much only do cats. Plus, it's just so cute, I couldn't resist. It's not really an original design by me by any stretch of the imagination, by the way. Overall, I'm pretty happy with it, but I need a better brush to do large dots like that. Also, I'd make the eyebrows a tad thinner next time. I wish I could get my real eyebrows to cover better, but that's the best I can do with what I have on hand.
Here's a time lapse of the process: http://youtu.be/WZ6svt-XsbA