His paintings have been shown in exhibitions throughout the United States including New York, San Francisco, Milwaukee, Scottsdale, and Birmingham, MI. He has a Bachelor of Fine Arts degree from Central Michigan University and a Master of Fine Arts degree from the University of Iowa. In 1984 he attended the Skowhegan School of Painting and Sculpture on scholarship. Pompilius has taught painting at the university level, and is the recipient of a Pollack-Krasner Award and a Michigan Council for the Arts Creative Artist Grant. In 2011 he completed the official portrait of Michigan’s Governor Jennifer Granholm, which now hangs in the capitol rotunda in Lansing. In 2013 he painted Allan Gilmour, President Emeritus, Wayne State University, and in 2016 he completed a portrait of Congressman Fred Upton from Michigan’s sixth district. It hangs in the Rayburn Building in Washington, DC.