Supermodel Amber Valletta poses with her son Auden McCaw in Steven Klein’s most Hitchcock-esque story yet for the March issue of Vogue US. Ever the picture of stoic beauty, Amber dons spring’s most spicy hues styled by Camilla Nickerson as she overlooks the ocean in the elegant designs of Jil Sander, Oscar de la Renta, Dolce & Gabbana and others in Lady Be Good.