A while ago I used to practice drawing freehand stuff that I couldn't ever draw properly. I had a couple of goes, decided that (given enough time) that I could do it easily enough with a bit more practive, and moved on. I only ever did a few images, and here they are:
First attempt at a face, I was the worlds worst at drawing, so you can imagine how bad much effort (and fustration) I went through getting this to look half decent. Drawn on textured paper.
First attempt at controlling the expression, My expression wasn't far from this after finishing it.
Side view. Awful.
Quick attempt at inking the first image in photoshop, seemed to work resonably well.