I immediately recognized the art style, as Sarkisyan had earlier been the art director for Roman Davydov's Shareholders (1963). He was also art director for a number of films in the 1950s, but he wasn't really allowed to develop a personal style yet - there was an enforced "studio style" at that time.
I think the script is quite decent but the narrator is so cheerful that it gets a bit annoying. He was voiced by the same lady who did the voice for the Hare in "Just You Wait" (Nu, pogodi!).