In 1987 Brewster moved to New Orleans to pursue teaching and art. In 1991 he was the Project Director of the New Orleans Contemporary Art Center’s “Artists on War” exhibition.
Brewster exhibited regularly at area galleries and institutions and taught Talented Visual Arts in the Orleans and St. Tammany Parish public schools. In 1994 he was awarded a NEA/SAF individual artist fellowship, followed by an Art Matters Fellowship in Painting.
Brewster's October 2006 exhibition at Barrister’s Gallery was among the first art exhibits in New Orleans after the flood. He went to work as a fine arts instructor at Delgado Community College until his retirement in 2017. He lives in Covington, Louisiana, and continues to create art at his studio there.