You couldn't think of a more deceptive title for this exhibition than “Fuegos de artificio” (Fireworks). There is nothing either spectacular or transient about these mostly white, gray, and black works that, even when not downright small, are rather discreet in character. Since the late '8os, Jorge Macchi has been making these cryptic works in diverse media. They're easily overlooked at art fairs or biennials, so it's not surprising that Macchi has not yet enjoyed great international success. A comprehensive view of his recent work, “Fireworks” showed it to be richer than many a more eye-catching