I like the figs : the real faces , the expression you gave some of them is really good, I think about one of your receivers and some of your linemen. You catched it well.
The only critic I'll do is about the eyes : often too big IMHO ; but it depands the style you want to give to the miniature.
Big eyes give a very expressive look, like in comic books for example. Smaller eyes are less expressive and visible once the face mask is fixed on the fig, eveything is a question of personal feeling. And from a table point of view, or showcase, I'm not sure little eyes are more "catching" than big ones...
A good technic to make small eyes is to use a very thin brush of course (3/0 or even 5/0), and make the eye in black. Then, add just two little spots of white paint on each side et voilĂ**
But again, I'm not sure it is really an issue. Smaller eyes will not allow you to make such face expressive attitudes on some of figures.
Can't wait to paint a little black an yellow myself, BTW
Dimitri