Christmas is just around the corner, but amid the shopping and festivities, don’t forget that many gallery shows are slated to close right before the holidays. The most obvious must-see is John Currin’s racy, exquisitely rendered portraits at Gagosian Gallery’s uptown location. Meanwhile, don’t miss the huge show of late Warhols at the gallery’s two downtown spaces, where self-portraits in fright wigs butt heads with Mao and Jesus makes an appearance in monumental Last Suppers. For something out of the ordinary, catch Martha Camarillo’s photographs of horse-riding culture in the heart of inner city Philadelphia (as in, hanging out on the street on a horse), at the Jack Shainman Gallery. (All shows close December 22nd.)