ABC Family held its 2011 Upfront Presentation at Beauty & Essex last night  in New York City and a bevy of beauties from its hits shows and new ones showed up dressed to kill.  Pretty Little Liars’ actresses looked stunning in pretty frocks.  Ashley Benson wore a flattering black tent dress with a silver neckline and black pumps;  Shay Mitchell looked sparkled in a sleeveless white A-line mini dress with a beaded statement necklace and Christian Louboutin pumps; and Troian Bellisario in a three-quarter sleeve red dress with black opaque tights and black pumps that elongated her legs.  Actress Raven Symone showed off a new body in a black frock and bright pinkish pumps.  Raven looks even thinner than her last red carpet appearance and I hope she doesn’t lose any more weight.