The content of the photographs are really good, but I would try thinking about composition. Where you place things in the frame, do some research on it and look up the Golden section I think its called.
Thanks for the comments! really appreciate any help i can get, the photo of the dog was cropped because just to the right you can see a road and other things which drew alot of attention to itself.. but im out with the dog alot so i'll have to try and re shoot it and use your advice given