Courtesy of mark

Ashley Greene knows a thing or two about looking beautiful thanks to many hours logged in the hair and makeup chair, and now as the new face of mark, she’s officially an expert! We went behind-the-scenes of her first photo shoot for the brand, where The Twilight Saga star modeled some of fall’s hottest trends and the newest makeup bag must-haves. To find out the makeup tricks she’s picked up on movie sets and photo shoots, check out our exclusive interview with Greene in the September issue of InStyle, on newsstands now. Click through the gallery below to see exclusive behind-the-scenes pictures of the star on set, plus the official ad campaign!

Watch our exclusive behind-the-scenes video from the shoot now.