25-Second Upside Down Flipped Funny Face Practice Warm-Up Sketch

Done as part of a practice session with poses of 25 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 yet another upside down flipped funny face practice warm-up sketch. I looked at it, and it's all a bunch of lines and colors, but I can really see the face, once I flip it right side-up. Please comment and share.