James Panero reviews six New York shows: Keith A. Smith: The Fabric Works: 1964–1980 at Bruce Silverstein (through June 6), Karen Schwartz: Down the Rabbit Hole at Life on Mars Gallery (through May 31), Mel Bernstine at McKenzie Fine Art (through May 3), Graham Nickson: Spectrum at Betty Cuningham Gallery (through May 22), Louise P. Sloane: Recent Paintings at Andre Zarre Gallery (through May 9), and Arts in Bushwick: Making History at Storefront Ten Eyck, Brooklyn (through May 10).