The Desperate Housewives star's mermaid-style dress (left, at a Beverly Hills gala in October) makes her look like "it's time to go back in the water," says stylist Cary Fetman. "There are prettier shapes to show off her body." Adds Weiss about her "cutoff prom dress" (right, at an L.A. party in October), "She looks like she's stuck in the '80s. She has to modernize herself a little bit. She needs to think more elegantly because she's a woman, not a girl."