A Norman Rockwell painting from 1914. Style: Regionalism Genre: portrait If this painting is a portrayal of Daniel Boone outdoors hunting, of particular interest are the three shadows, none of which are consistent with each other. This would not occur in nature. He did this deliberately to get your attention and for artistic effect. Norman Rockwell, a very famous 20th century American artist and illustrator, is very popular in the United States for his portrayal of American life.