Finished low poly head, would like feedback.

This is my first time modeling a realistic human head, I would really appreciate feedback on the edge flow and mistakes I made. And tips on how to possibly reduce the poly count.headlowpolyblenderartists.blend (500 KB)

EDIT: If you find any non planar quads; I removed them.

this non planar quad on the neck stood out initially, but also tell us do you intend to animate it much as far as facial expressions?

I’ll be using it as a game asset, I would like to add a few shapekeys (nothing over the top).

well, I did a quick test on the mouth and it seems to deform fairly well for minor stuff. avoid those bent quads though. they will cause graying artifacts.