Roberto Cavalli's signature brand of sex appeal got cleaned up for Spring 2013 with a collection that examined dark and light — both in fabrics and in the women who wear them. Cavalli's casting for this show put blond models in a wide variety of sweet all-white ensembles made from lace and laser-cut leather that simply looked like lace. These looks yielded to white pieces tinged with lime green or pale orange treatments like prints or more cutout leather. Eventually the mood darkened to not-so-basic black in looks frequently shown on brunette models: one blazer with embellished shoulders was paired with sheer black trousers, while a dress with dramatic, flesh-baring cutouts got the same glittery treatment. It was an interesting exercise in dressing different kinds of women from one point of view. And that focus on dressing women is part of what turned this offering into one of Cavalli's most appealing outings yet.