Powell's public art and large
commission pieces include:

Community Center, Oakland, CA 1997,
7'x16' window and skylights

University of Florida, Gainesville,
FL, 2003, 5'x17' window

Performing Arts Theater Atrium, Anchorage, AK 2006, 10'x24' window

Mission Children's Hospital,
Asheville, NC, 2006, 2'x16' window

Home for Jewish Parents, Danville, CA,
1999, 7'x7' window

Hebrew Academy, Atlanta, GA, 1989,
5'x35' window