These images are part of a set of illustrations I made for a fairy tale for Ukrainian children called "A tale about how and why they started to celebrate the New Year". It is part of the eighth edition of the project "Tales in Ukrainian with Dr. Komarovsky" by Yevgeny Komarovsky, a famous Ukrainian paediatrician, writer, TV presenter.(website here and wikipedia page here). 

The author of the fairy tale is Victoria Berezka.

The illustrations were used for the video where the tale is narrated. The video is available here in YouTube.