My personal opinion is it looks like she is trying too hard to cover the chesticles.... I would also like to see her hair pulled back a bit to show her amazing cheek bones. Great exposure, lighting and background though!
Gotta say I love the curve she creates with the hip in the first pic.
If you want to get really picky the stray hairs in the third pic could be easily edited. The transition in tan lines is less annoying but is something else to consider.