Here are some sketched faces. I started to paint over one digitally.
That bottom right face is from a character I depicted back in 2007 when I was learning about digital painting. That older image was a self-assigned exercise, so I didn't finish it beyond the parts I was most interested in rendering.
I sketched the face from memory, and got some of the details wrong, but recalled the main design idea.
Thinking about digital painting stuff; sketching and moving pencil work into digital.