As a child in Annapolis, he "recalls the 'excitement of tinkering' with stuff he discovered and recovered during walks in the woods and visits to the naval-community dump.
in Art History at the University of Delaware, where he wrote his Masters thesis on the "Use of the Found Object in Dada and Surrealism".
His collage-like sculpture is assembled from metal, wood, and plastic that he collects from trash, yard sales, and flea markets.
His art has been seen on children's television shows, including Captain Noah and Mr. Roger's Neighborhood, and features in the permanent collections of 23 Ripley's Believe It or Not!
The show, curated by Susan Subtle, featured Sewell alongside other artists Mildred Howard, Mark Bulwinkle, Clayton Bailey, Claire Graham, Jan Yager, Remi Rubel, Pippa Garner, and others.