Below is the stage I have got to with the houses I am trying to create. In the next post I'll show the picture I am working from/trying to replicate.

Can anyone point out ways i could improve what ive got, and anything else I could do to make a final image more closely resembling the one I'm trying to copy. Im really pretty embarassed of my image, i'd like to produce something that looks at least a little more half way professional. I dont know if my issues are in the texturing, or the lighting, or more the post production side of things? probably a little bit(alot) of each.