"Bottom line, I wanted it to be strong," said Rachel Roy of her new collection, the second one she's shown in the striking lobby of Barry Diller's IAC building. So, out went the bubble skirts, the poufs, and the embellishments that have weighed down some of her previous efforts. And in came a slouchy-but-sharp double-breasted gray flannel suit, a peplum bustier top worn with cigarette pants, and a marble-print long column dress. The flourishes came in the form of chunky mirrored necklaces and cuffs by Subversive Jewelry's Justin Giunta. Roy arranged her presentation by color palette, showing similar silhouettes—a narrow, one-sleeved sheath; a dress with geometric cutouts at the ribs—in blush, pale yellow, slate blue, or black. It made for a big visual impact that was somewhat compromised by the models' bobbed wigs and black lipstick, a too obvious reference to YSL's Fall 2008 show. That distraction aside, Roy's line has done some growing up.