28-Second Flipped Facial Expression Warm-Up Sketch.

Done as part of a practice session with poses of 28 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 latest sketch. It's not meant to be clean and clear. It's really meant to get me engaged to be a little much looser and a lot more lighter in sketching out my forces of my facial muscles. What do you think now?