Yeah, lovely puppy first of all
I would echo the view that although you can get super shots looking down at the doggie, a few of these dont quite work.
Also, i would have liked to have seen a couple of the dog making eye contact with the camera, its nice to have a few of him looking past you, but a few of him looking at the camera would have been nice. Again, if you are going for a top down view, click your fingers to get his attention to look straight up at you.
I reckon as well you cuold have gone with going for a slightly larger aperture, get those backgrounds nice and blurred, if your shooting against a crummy background that its not the end of the world, you just have to be a bit more creative with your camera