Complex sentence: He studied painting under Hans Gude from 1881 to 1883, and having worked as a naval officer until then, he specialized in marine art. He is represented by three works in the National Gallery of Norway.
Split into simpler sentences: He studied painting under Hans Gude from 1881 to 1883. Having worked as a naval officer until then, he specialized in marine art. He is represented by three works in the National Gallery of Norway.