30 Second Expression Sketch

Done as part of a practice session with poses of 30 seconds in length. My current goal is: Make my faces and expressions with as few lines as possible. Hello all, here is my latest face sketch. You must pardon the scribbly appearance, but I really had to get all of my vitality out of my system. Sorry for having too much lines, but I'm still disciplining my line economy. What do you think?