Mariko Mori at the Gallery Koyanagi by Monty DiPietro Miniskirted media darling Mariko Mori beams a wild child s smile from the cover of the March issue of ARTnews, the New York-published Newsweek of the art world. Not unlike compatriots Taro Chiezo and Yasumasa Morimura, Mori s conceptual work is characterized by simple social commentary expressed through high-tech materials and processes.