Nicole Miller has grown a more successful business than many of the other designers showing this week, and tonight's collection made it clear why. One frock after another, in sequined geometric patterns or elaborate pintucks, would work equally well whether you're pushing 25 or 45. Working with a more subdued palette than usual ("Everyone thinks of me as the color person!" Miller joked backstage), the designer experimented with lacquered fabrics that yielded standout faux-leather and velour biker jackets. In an era in which Michelle Obama moves more clothing than an Olsen twin, Miller's sophisticated-but-fun wares feel just right.