The StyleWatch team has been mourning the end of The Hills for the season, but here's something to cheer us up: We'll being seeing more of ultimate California girl Lauren Conrad as the new face of mark, in ads breaking this fall. Cosmetics. Lauren was the center of attention at a public photoshoot in N.Y.C's trendy Meatpacking District yesterday -- she writes on her site, "I'm in New York for my shoot for mark. So much fun. ...