C&C per req:
1. Bright, direct sunlight is not generally your friend in portraiture. The blown or nearly blown highlights on her hair, and right forearm as well as the white reflection in her right sunglass lens are somewhat distracting.
2. A nice casual portrait, however the uneven illumination detracts from the image. A diffuse fill light to the photographers right aimed up from the ground, and perhaps a reflector would have helped to even it out and greatly increase the appeal of the photo.
3. I rather like the bad girl pose in this one, but again, uneven lighting; a little fill for her left leg/lower skirt would have helped. The in-focus background and especially the overhead wires don't work. The wires tend to lead the eye right over the subject, and the there's enough going on in the background that it's very distracting. Selective focus would have helped.
4. I like it; a lot!
5. This one doesn't really work for me. The highlight on her right arm is distracting, and the expression on her face doesn't [to me] seem to suit the pose.
Overall a nice set of pictures with a few minor issues. I would say that both you and your model have great potential - keep at it!
Just my $00.02 worth - your milage may vary.