[2] His daughter Alise was born in 1909 and raised in fosterage, until she later moved to Copenhagen to join her father and stepmother.

In 1901 he was in Åsgårdstrand, where he painted Two Men and Three Boys, which were both shown at his first appearance at the Autumn exhibition in Kristiania in 1901.

After a fight with the poet Nils Collett Vogt he was temporarily expelled from the circle of Norwegian artists residing in Paris.

[5] Karsten's first separate exhibition, at Blomqvist in Kristiania in September and October 1904, received mixed critic in the newspapers.

After a night of heavy drinking, possibly on Midsummer Eve, it came to quarrel which led to a violent fight between Munch and Karsten.

In 1920, he bought a house in Skagen where he began painting large landscapes in his pointillé style, attracted by the bright local light.

[1] Karsten is represented at the National Gallery of Norway with several paintings, including Kristi gravleggelse from 1904, Vårkveld i Ula from 1905, Tæring from 1907, Det blå kjøkken (English: The blue Kitchen) from 1913, Det røde kjøkken (English: The red Kitchen) from 1913, and Flukten fra Egypt from 1922.