Complex sentence: He painted at night in a series of studios, entered the Seattle Art Museum's Northwest Annual and the Henry Art Gallery's Northwest Invitational shows, and sold his first painting, to collector and gallery owner Zoe Dusanne.
Split into simpler sentences: He painted at night in a series of studios, and entered the Seattle Art Museum's Northwest Annual and the Henry Art Gallery's Northwest Invitational shows. He sold his first painting to collector and gallery owner Zoe Dusanne.