[Face][5min×2]2023.1.12~2023.1.26

Good evening, Rinne, and welcome back. Great work on showing your range of movement and form and relationships of your facial expressions in a believable way. Please keep at 'em!

Yet still, I'm not totally getting enough of that especially distorted motion of those heads and expressions. How would you like to free up your shoulders with 1 hour of 1 minute sketches, all flipped vertically? The reason is because of two explanations: First of all, to be more looser and lighter with your graphic shapes or lines. And second, to get yourself more into the creative side of the brain. If you're completely curious about drawing faces and expressions in motion, then I'd recommend a free PDF of Walt Stanchfield's Gesture Drawing for Animation, which by the way, doesn't only apply to animation and cartooning.

Hope this thing has been helpful, informative, and furthermore, encouraging.

I really like the use of the midline and accurate proportion you have! Continue careful measuring, as it greatly helps improve the likeness of your drawings to your reference.
I think you could improve on the shading/ use of line in your drawing. Since these drawings are relatively short, I understand not having much shading in your sketches. However, I still think you could improve on where you decide to place lines which indicated tonal and plane shifts.

For example, when you used lines to indicate the cheeks (drawing one up from bottom right), they don't have much weight in the drawing and seem randomly placed. Keep in mind the strucuture of the face as a 3D form so every feature on the face seems to impact something else.

To practice, I think drawing from a simplified 3D head would be beneficial to making your drawings look three dimensional. I like this model: https://sketchfab.com/3d-models/simple-asaro-head-fd74ad764a4e4619b72733316dc574b4

Keep up the good work!