Technically these photos are very good but they aren't telling any story. Some of them are like pimped facebook photos. Think about the usage of background and the crop of the scene. For example: the lady on the road with her bra outside. There's not enough information on the photo and it makes it more commercial, it looks like and advertisement photo of jacket. What she is doing there? Why she's exactly in the middle of the road? Why she's covering the line of road? Why there's so much space on the sides? Her body is curved but her face didn't show any emotions. It's like it's like runing on fun speed while sleeping. Photo with the guy and the bag is much better, technically not perfect but the crop is made almost perfect. He's looking on something on the right and the crop is a bit moved to right. This makes photo a bit more open and warm. The negation of this (when guy looking on right will be placed in the right side of the photo) will cause closing of the crop and makes photo a bit colder. It's because observer's eye is running through the objects that are on sight line of the model. when there's no objects, the eye is looking for contrasts, edges, light spots or any other detail. It makes watching photos a bit confusing. Placing the model in the center is the simpliest way to get observer's eye attention but it's cheapest.Try to show more scene on the photoes. Imagine that the key on the photo posted below is a model and he's looking on the front or on the left of the cropped scene. I hope you understand what I mean. Of course you don't need to agree, it's only the technique of steps of eye observation.
[Blocked Image: http://mjenso.webd.pl/fotolog/2010-04-06/e_b.jpg]