Those are wonderful! It's really interesting to see Jansson's take on the characters and settings. When I read _The Hobbit_ in the early 1970s, there was already a well established tradition of how to portray Tolkien's world. Jansson's seems very fresh to me.
Also of interest, and probably just as upsetting to some, is Gene Deitch's version of _The Hobbit_ which was made in the mid 1960s in an attempt to retain the movie rights. Made in 30 days!