Painter, sculptor, and printmaker. His varied work responded to cubism, constructivism, surrealism, and Kandinsky's nonobjective painting. In 1921 he arrived in New York after studying at the Royal Academy in Copenhagen. Following a winter in Taos, in 1923 he settled in Los Angeles, where he became a leading figure in the area's small avant-garde. Through the 1930s, he worked mostly with abstract form, demonstrating a sure hand in composing with geometric elements arranged in interpenetrating or overlapping relationships. Some of these works are shallow relief sculptures, formed by affixing three-dimensional elements to a flat background. He also experimented with surrealist-induced biomorphic forms and with collage, often including representational photographic fragments. In the mid-1930s, he exhibited with the post-surrealist group founded by Lorser Feitelson and Helen Lundeberg. In the 1940s he incorporated chance in freely poured and splashed paint of Flux abstractions that prefigure Jackson Pollock's grander achievements. He returned permanently to his native Denmark in 1952. In 1938 he published A Poet and Two Painters: A Memoir of D. H. Lawrence, whom he had met in Taos.