The same principles apply: first the main shape, then the details.
You sort of sneak up on the details. If you put them in too early, you'll find they look wrong. They are probably not 'wrong' as such; more, they are in the wrong place.
We've been looking at the parts of the dog's face separately but, of course the the various parts aren't separate. Everything is connected and related to everything else. So take a step back at the end and make sure everything you've carved merges and works together.