Everything posted here is viewed as an opportunity for critique. It's driving me away as well. Perfect is truly the enemy of the good.
Truth be told, it was a few diagrams similar to these (though non-moving) that I saw and studied when I was probably about ten years old that fired up my interest in the mechanics of automobiles specifically. That turned into a long-term pursuit and I even spent several years working professionally as a mechanic and delving into some custom and high-performance work. It was doing engine performance management and working with ECUs that I dove into electrical signalling and decided to shift gears a little and get into the high-tech world, so I put myself through college at night. I still think of those diagrams from time to time.
Someone's creation of a few diagrams like this years ago opened up this kid's mind in a lasting way. I'm sure there were plenty of criticisms to be made on them, but they still had an important and lasting impact.