I like your skin tones and hilights in the eyes
Ok here is wat I watch for,
1) 4 fingers and no Thumb,
Shaddow on both sides of the nose, adding a reflector above would help to correct this
the reflection on the pole is lighter than any part of your model is and this draw you way from her
2) I like this shot but it is a bit dark and could use a tighter crop, one small note would be to watch the neck in number 2 dropping the shoulder would eliminate the bulge in the neck and give a nice jaw line, it seems like it could be a bit sharper when you look at number 3
3) I like this shot, again try to drop the shoulder and show more neck as well watch the composure (Rule of 3rds)