Thanks, Lolo. 
Very true, no one models a head or body in perspective
but I’ll paintover whatever render is given me.
And, of course, you have to rotate your model in perspective to see it’s flaws…but in any case, I think the main point was to show that the facial proportions need to be tweaked ~ the eyes are a bit small, the lips and nose a bit large and lacking planes, the ear needs to be thicker, etc. Also, that more mass needs to be added to the top of the head. These are all universal things to heads ~ and proportions are probably the toughest aspect of the figure to tackle.
Hope this is useful, scootermaya!
I think my main suggestion would be to really study reference for individual features of the face ~ photos of eyes, lips, nose, and chin, in detailed, close~up pictures ~ and also to study orthographic views of faces as Reference as well / using image planes for direct modeling reference.
Scootermaya, I don’t know if you’re aware, but we have several useful 3D Threads here which you might enjoy: 
http://forums.cgsociety.org/showpost.php?p=2897679&postcount=6
Cheers, 
~Rebeccak