It's a very interesting idea, but considering the fact that fur of your dog's face is so dark, it is hard to make out any distinguishing features except for the eyes. I would try to lighten up the dog's face in general, but otherwise, nice work.
Im a dog person i think it is hilarious I actually laughed... I think I would have light just the eyes a little to make them kind of glow but heck I love it the way it is to.