Taking over the 9,800-square-foot Brant Foundation Art Study Center in Greenwich, Conn., Canadian sculptor David Altmejd has staged a kind of beautiful, nightmarish, campy creation myth, Nov. 5, 2011-Apr., 2012. Piles of coconuts collect in corners like furry cosmic eggs. A crudely cobbled angel stands on a sunlit pedestal. Glittering werewolf heads in varying states of transformation lie on the floor. Plaster hands tear open and emerge from walls and canvases.