I like 1 and 3 the best with one being my fav. Good choice on background as I like the roughness of it, balances well with the softness of the model. She has a bit of a edgyer look about her in the first shot, and it works good. #2 does not do anything for me everything looks good, but I don't find it exciting. #4 might have pertentiol, but is missing something... oh hands. Of course you knew about that and I have done it more than I care to admit myself. All in all though I think you did a terrific job on them and look forward to more shots.