#1 would be very nice if she were looking down instead of up, we'd see more of her brown eyes and less of the white, which looks a bit odd. IMO
#2 Is a good pic although for my own tastes I do not care for the style of taking them on an angle.
#3 I think could be a great pic if she were dressed a little nicer IMO.
The other thing I would like to add is they all need more color saturation, they appear washed out to me.