Very nice and interesting split toning on some. The top photo seemed the most powerful to me.
Mostly very nice throughout. Last was only troubling to me because the cropping / composition choice has her looking off frame with too much dead space behind her for my taste.
Not that I don't occasionally break the rules from time to time as well. It's just an opinion.
Maybe you wanted that tension of not knowing what she is looking at? I just felt that there wasn't enough going on in the scene to keep my attention there either.
All in all , very good - jealous of your location , model, etc... : )