Last night couture designer Joanni Mastroianni (above photo center right) celebrated the opening of her new couture salon at 230 West 38th Street with an elegant cocktail party for her clients, friends and press. Models circulated throughout the evening informally modeling the designer’s latest creations while upwards of a hundred people sipped wine and ate hors d’oeuvres. In the crowd were familiar faces including Jeanette Chang of Hearst and Joan Kaner, Fashion Director of Neiman Marcus.