14-Second Color Scale Face Warm-Up Sketch

Done as part of a practice session with poses of 14 seconds in length.

My current goal is: Improve my understanding of the forces of my facial muscles, in terms of my facial anatomy.

Here is my newest ever warm-up sketch. It's not meant to be as much as the final product. It gives a very good indication on the direction I'm going. I'm really going for the simplest, and most animatable lines, shapes, spaces and forms, in the forces of my facial anatomy's facial muscles. What do you people think?