These are pretty cool. I really like the compositional design on them. 1 and 4 are a little disconcerning for me as the model doesn't really seem to be anchored to anything so she looks like she is just floating. Normally our eye tend to go to the element that is most unlike everything else in the photo. In those two, the dress is the thing that stands out most. If that is what your focus for the shoot was then you acomplished it. If the focus was to be the model, I think something lighter in color would have been better so that her skin tone was the most different element.
@Jesse and Derrick: Hats off to both of you for really digging into the forums and contributing. I think it is just the kick in the pants that this site may need.
I have been reluctant to post much here because of the rumored site upgrade that is coming. The last two upgrades were really frustrating because I lost a bunch of images and the learning curve was step for me. The increased number of posts you guys are putting up, might must be the kick in the pants I need, too.
Keep 'em coming.