New animation exercise: Head Turn 1st pass

I'm starting a new animation exercise, the head turn. Which was given to me by my roommate Joe. You can say he's like my teacher/mentor or whatever you want to call it. He's helped me a lot and I've learned a lot about animation, Thanks to him and Neth. So I've also got two other exercises which are arm swing and box with chain which demonstrate overlapping. Anyways, here's the head turn...