I agree with you but I also like the way it leads you out of the photo. As much as this isn't abstract, I kind of wanted it to be a little abstract. Kind of like a roller coaster. It brings you in, takes you up, then down and then out the frame. Make sense?
It does make sense, but typically, you don't want the viewer's eye to 'escape' the image. If it does, they tend to take a quick look at it and move on. Or they may have to 'start over again' and it gets repetitive, with their shooting out of the image every time. To me, a more 'successful' image is one where the viewer's eye travels around within the image, yet does not stagnate. This one reason why vignettes are such useful tools, they can gently persuade the viewer's eye to stay in the image.
I also added a couple more pics.
Nice series, well done. You're lucky to have such a beautiful and willing model at your disposal.
I really like the 2nd image (and not just because it's a frontal view of a naked woman). It's an excellent example of hiding 'parts' with shadow. Some might even call it selective lighting. I think that her far arm is hurting the image though. It's a tad too bright and the shape takes away from the aesthetic of the body shape. I think it would have been better, had she stretched her arms above her. That, of course, would prevent her from using the 'hand bra', so it would then be up to you, whether or not you wanted to light the breasts to show up or not.