Fumiko Hori (July 2, 1918-February 5, 2019) was a Japanese artist best known for her paintings in the modern Japanese style of Nihonga.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Fumiko_Hori
Bippu to Chocho [Bip and the Butterfly] illustrated by Fumiko Hori
1956 / Written by Jun’ichi Yoda/ Published by Fukuinkan Shoten
Fumiko Hori on Artnet: http://www.artnet.com/artists/fumiko-hori/