Pencil Portrait Sketch

Pencil Portrait Sketch - student project

I sketched along as the different parts of the class and learned a ton, I think these were probably the best eye, nose, mouth, and ear I've ever drawn. 

Pencil Portrait Sketch - image 1 - student project

Then I tried doing an actual portrait which is also the best I've ever done but don't think I capture the right expression. It might've been easier if I had a better reference and if I could print it out. 

Pencil Portrait Sketch - image 2 - student project

And here's the reference:
Pencil Portrait Sketch - image 3 - student project