Iceland experienced a period of prosperity in the post-war era and for the first time painters and writers began to form groups and movements.
Between 1958 and 1970 the structure of his large gouache paintings and pen-and-ink drawings became more relaxed, with straight lines replaced by a more rhythmic interplay of curved and circular shapes.
Static formal shapes were replaced by more fluid constructions in intense shades of red, yellow, and blue, accompanied by areas of black and whites.
[1] Along with Benedikt Gunnarsson, Bragi Ásgeirsson, Eiríkur Smith, Gerður Helgadóttir, Gudmunda Andrésdóttir, Gudmundur Benediktsson, Hafsteinn Austmann, Hjörleifur Sigurdsson, Hördur Ágústsson, Jóhannes Jóhannesson, Jón Benediktsson, Kjartan Gudjónsson, Nína Tryggvadóttir, Svavar Gudnason, Sverrir Haraldsson, Valtyr Pétursson and Thorvaldur Skúlason.
Kvaran's work was featured in a 1998 exhibition at the National Gallery of Iceland in Reykjavík, "The Dream of Pure Form, Geometric Art of the 1950s".