Grelle’s self-directed education under the tutelage of James Boren and Mel Warren, both CAA members and residents of Grelle’s hometown of Clifton, TX, has resulted in a unique vision. Whether painting contemporary ranch scenes or traveling into historic landscapes, Grelle’s pleasing palette, sense of texture and subtle compositions have earned top awards. He won the 2002 and the 2005 Prix de West and the 2004 Buyer’s Choice at the National Cowboy & Western Heritage Museum, Oklahoma City, OK. He also exhibits at the Masters of the American West, Autry National Center, Los Angeles, CA, and since 1995, with the Cowboy Artists of America, Phoenix Art Museum, AZ, receiving the 2002 People’s Choice Award.