I've spent about 7 -9 hrs on this. I'm glad to know that I can still mantain focus for that long. I'm miffed that my arms don't like to be held horizontal for asking as the use to. It makes shading a bit of a pain.

I'm going to watch more of my course and see what things I can glean from it to help me improve on my shading and tonal identification.

The lower jaw still irks me. The proportions are correct, or they seem so. But they are probably off by mils and that has a culminative effect of looking wrong. Anyway, it's the best I can do at the moment in terms of skill and patience.