Upload & Sell: Off
@arloc: Not surprised you had a headache when you came back.
I assume you want to flatter your subject. Here are some random suggestions on that, which you may or may not like to consider.
Facial distortion -- you're in too close. She wants a tight head shot, ok, but do it with a longer lens and step back a bit so you don't exaggerate her features.
Lighting -- I can take or leave the shadows, but in #2 you've taken fairly clean skin and exaggerated every little pock mark and imperfection she has by using harsh sidelighting. I'd suggest you raise that light a bit higher and bring it around to camera front at least a little, or else add another light source for fill. I don't care if it's a reflector, a pop-up flash, bounceback from a sidewalk, or the sun -- just something to fill a bit. Your light position is a bit low for my taste in all three, although it's better in #1 imho.
If you shoot her in profile, make it a true profile. When you shoot her face at an angle, don't let her nose break the line of her cheek. In my experience very few people, especially women, like to have attention called to their noses.
Reflect or direct some light back onto her hair. Especially in #1.
On the flip side, I think she's done a nice job with her makeup and you've done a nice job with the focus and color. #3 is a little blown, but could probably be saved. I wouldn't try to rescue it if it were mine because I'm not keen on the facial expression. Does she wear braces or hate her teeth? If not, I'd be trying to coax a real smile out of her.