That's FEMININE HEAD TILT, Lew. Just ask Derrel!
Her crooked mouth bugs me a bit. I don't know if she's actually that crooked, or if she's just quirking up the one side, or what. BrianV is right, it looks strained and uncomfortable.
Something I am seeing, but have no idea how to fix, is that there's a sort of a pyramidal flow, top to bottom. Her chest is obviously.. wide. And then her eyes look sort of close together (possibly because they are a little close together?) and then her head seems to not quite come to a point. It's not a big thing AT ALL, but I feel like it's a little unflattering. Maybe opening up her forehead a bit my moving the hair around might flatter her more? Not sure.
Lovely girl, pretty well shot, overall, though!