Complex sentence: He is widely known for his idealized fictional wartime characters Willie Gillis and his depiction of Rosie the Riveter and some of his other war art is known by name such as "War News" and "Homecoming Soldier".
Split into simpler sentences: He is widely known for his idealized fictional wartime characters Willie Gillis and his depiction of Rosie the Riveter. Some of his other war art is known by name such as "War News" and "Homecoming Soldier".