Peter Hansen would comment that his son had become a great martyr in the rising Spanish Anarchist movement that was sweeping Spain.
[2] Together with Johannes Larsen, Poul S. Christiansen and Fritz Syberg, Hansen was one of the first Funen artists to study under Zahrtmann, leaving the traditions of the Danish Academy and venturing into Naturalism and Realism.
Bulgende rug (1894) and other earlier landscapes with cornfields and thick hedges, often under cloudy skies, were inspired by Vincent van Gogh whose paintings were exhibited in Copenhagen in 1893.
Hansen's frequent visits to Italy influenced his work, as evidenced in the numerous paintings from Naples and Pompei with their sunburnt landscapes and peasant life.
From 1905, Hansen spent his summers in his native Faaborg where he painted scenes of the town and the surrounding countryside and his winters in Copenhagen where he captured street life in the districts of Nørrebro and Vesterbro.