Nothing astonishing, but a good, simple and charming children's cartoon by Aleksandr Viken. The relationship between the kitten and the puppy reminds me a bit of Lev Atamanov's excellent series The Kitten Named Woof (1976-1982), which would have been quite popular at the time this was being made.

Viken's filmography is split about 50/50 between the ones aimed at children and the ones aimed at adults, but I think he generally did a fairly good job at both, at least during the Soviet period. He directed some more films in the 1990s (Ukrainian Wikipedia has a full list) but I've only seen "Little Bohdan and the Drum" so far, and I didn't think that one was so good.