Marc Straus Gallery nods to Mark Rothko’s hovering, painted rectangles of color and Josef Alber’s nests of colored squares on canvas, but the real attraction to Spain-born, New York-based artist Antonio Santin’s paintings is the fact that they’re painted at all. Resembling tapestries, Santin’s amazing abstract paintings are made with oil paint in a variety of patterns that suggest a 3D surface with something hidden beneath. (On view on the Lower East Side through Oct 16th).