As I’ve mentioned before, the illustrations for Jeffrey’s fanfic are all sort of loosely based on illustrations from the Oz books. The drawing of Artie with the yogurt is based on an illustration of Billina the hen in Ozma of Oz. I’m only bringing this up because I like Billina. Actually, all the illustrations in this set are pretty good. I learned a lot by copying John R. Neill.
It says volumes about Artie’s upbringing that his concept of humans is of large creatures with opposable thumbs and access to liquid helium. Jeffrey got this exactly right.