Although Milan Fashion Week is in full swing, the parties haven’t stopped in New York. Last night RxArtfounder Diane Brown celebrated their 11th anniversary along with some very stylish chairs including Jen Brill, Poppy Delevigne, Vanessa Traina and Leigh Lezark. The non-profit organization is dedicated to filling healthcare facilities with contemporary art. RxArt unveiled the third edition of its coloring book Between the Lines by artist Rob Pruitt, sponsored by Chanel Beauté. See the fashion heavy hitters who came out to celebrate.