Nice focus, beautiful subject, good background. I would have preferred that the dog be on the right thirds instead, as it is it appears that the dog is going to run out of the photo, therefore it draws me out of the photo instead of into it. Of course that is just my opinion and I have no idea what you had to work with. Good luck
The dog is very sharp and that's good, shame about the composition though. It would have been good for mine to either show none or all of the fence above and placed the dog in the frame so the eye didn't lead out of the frame. 5/10