This show has some of the best paintings that Rema Ghuloum has made, but that might be a problem. She’s honed this language—obsessively detailed, rainbow-hued, color field paintings—past the point of perfection. These paintings glow, but the unfinished, muddy, and off-kilter areas are just as compelling as the glimmering bits. At some point, the prismatic palette feels repetitive, and the impasto borders are too stabilizing. The best ones move away from that, with off-tones taking on a leading role. These are gorgeous but a little too fussy and controlling.