William Powhida at Schroeder Romero.(NEW YORK)

Extending the mockery of New York magazine's notorious "Children of Warhol" issue (Jan. 15, 2007) and the young artists it lionized and ridiculed, William Powhida nominates one of them, partier and graffiti artist Dash Snow, for particular derision in "This is a work of fiction ...," his high-concept exhibition. Launching what is surely neither the first nor last stone at such tempting targets, Powhida recasts New York's cover and several of its spreads in the 44-by-54-inch storyboard The Bastard (all works 2007). It is a series of graphite and gouache drawings on panel with…