Expert skateboarder Di’Orr Greenwood, an artist born and raised in the Navajo Nation in Arizona and whose work is featured on the new U.S. stamps, rides her skateboard next to her artworks in the Venice Beach neighborhood in Los Angeles Monday, March …Expert skateboarder Di’Orr Greenwood, an artist born and raised in the Navajo Nation in Arizona and whose work is featured on the new U.S. stamps, rides her skateboard next to her artworks in the Venice Beach neighborhood in Los Angeles Monday, March …