Lower than the dog is usually a good policy, and sometimes you can't get low enough!
View attachment 8998
But every once in a while, high above the dog is the best choice.
View attachment 8999
Usually eye contact makes a photo better, too.
View attachment 9000
But not always.
View attachment 9002
Shooting during the "Golden Hours" usually give the best results.
View attachment 9003
Include the environment, too.
View attachment 9005
The one tip I'd give other than those already mentioned in the thread is; a dog with it's ears perked invariably makes the photo better than a dog with it's ears back. Some dogs just hate being photographed, but if you rattle a box of treats or use a squeaker to get their attention, the results are almost always better.
View attachment 9006