Do Herbal A and Herbal B correspond to differences in imagery?

[Koen G]

I dug a little deeper into the question of Herbal A vs B images, illustrating previous remarks by Sam G and Oocephalus. 
By just learning a few exceptions and two rules, an inexperienced person can separate all Herbal A vs Herbal B bifolios based on images alone.

I will just link to the blog since some of the images I included are quire large:
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