Lesson Homework continues with a face!

This has taken some time and I am not entirely happy with the nose or the shading. However I'm about to post to Suzi Blu for some help.
This is the first scan I took...



And with a bit more shading...



There is still some work to be done. The scan always look so bright and struggle to show the gradients of shading but I can see how much more it needs.
On we go...