It may not be a hard-and-fast guarantee of quality when a work of art brings a broad smile to your face the minute you set eyes on it, but an appeal to the pleasure principle is no bad sign. Such was the effect on me of Pilar Albarracín’s Techo de ofrendas (Ceiling of Offerings), 2004, an installation consisting of hundreds of colorful, ruffled flamenco dresses bunched together to fill the overhead space of the Kewenig Galerie. Of course it’s a great joke for a Spanish artist having her first one-person show abroad to play on stereotyped images of her homeland, yet there is something so tender