I remember this painting. My parents are into antroposphy / theosophy, and we had many old folklore and fairy tail books. I had a poster of him in my bedroom from 'Among Gnomes and Trolls'
Tragically died at 36, 3 years after painting this.
Not really the same but I knew the artist personally in my childhood and it is in the style of the antroposphical movement, which I do not approve of, it is like a cult. We used to go to her farm often and I played on the piano and watch her paint. Her husband was a concert pianist if I recall correct...long time ago.
Adrie Hospes, she made the cover for the Dutch version of Krabat "Meester van de zwarte molen" bij Otfried preußler.