Yeah, there are more ways to break it down from there. But at least you'd have a consistent direction!
One thing a former student of my school was complaining about is that at her new school, an "outside block" is done with the palm out, while at our school an "outside block" is done with the palm in.
The top image is how we do it at our school, the bottom image is how they do it at her school. (At my school we teach the bottom block with the knife-hand, and call it "knife-hand block". Later on we learn the top version with the open hand, but we don't really do the bottom version with fist).