Hi Al

I think you are on the right track but there are some bits that really stick out here. The bridge of the nose is way too sharp and needs to be softened as its got huge crease. And also the line you have from the edge of the lips to the base of the nose is too low. I have drawn on your image, hope you dont mind, so you can see what I mean, also the brow needs to come out more.
I'm not trashing you or your model I just hope this is constructive enough for you to improve your model

Later
_J