Signe Hammarsten-Jansson Hammarsten-Jansson designed over 200 stamps. The couple had three children in total: Tove Jansson, Lars Jansson and Per Olov Jansson. Born to artistic parents, the children grew up in a Bohemian lifestyle, and all became artists in their own right. Tove became a writer and painter and would gain particular fame for her "Moomin" series. Lars became a cartoonist, ultimately becoming responsible for the "Moomin" comic strips as well as a later animated version. Per Olov became a photographer and collaborated with Tove on a few books. The children were directly influenced by their mother's artistic sensibilities and Tove in
Viktor Jansson a somehow abstract form. The model for Kajastus, Convolvulus and Nuoruus was Tove Jansson, the daughter of the sculptor. Viktor Jansson Viktor Bernhard "Faffan" Jansson (1886 in Helsinki – 1958 in Helsinki) was a Finnish sculptor belonging to the Swedish-speaking minority of Finland. He married the illustrator Signe Hammarsten-Jansson and they had three children: the writer Tove Jansson, photographer Per Olov Jansson, and Lars Jansson, an author and comic strip artist. Starting from 1929 Viktor Jansson created several drafts for sculptures picturing young women, one of which is called Convolvulus. The other sculpture from the same series named Youth (Nuoruus)