Hey, you didn't have to shave for us (OK I did the same for thing before my photo), ha ha. So, couldn't decide which side to show us, hmmm left or right. Anyway, over all excellent shot! The only thing that I wish was not there is the over exposed side of your forehead and right cheek in the mirror. Good Luck in the challenge.
There is at least one another shaving portrait in this challenge and I think your is far better. I'm thinking if it had been better if you were looking in to the lens throgh the mirror but I'm not sure. In that case you could have an accident during the shaving!