Erdem embroidered gown: Poppy Delevingne or Hanneli Mustaparta?

Which one of these two versions of neon-embroidered silk-organza Erdem Resort 2014 gown do you prefer: the short version wore by Poppy Delevingne on the street, at London Fashion Week Spring 2014, or the long original design wore by Hanneli Mustaparta yesterday while attending MyTheresa.com and Anya Hindmarch private dinner hosted at Royal Academy of Arts in London?

If you love the dress you can buy it 50% off from MyTheresa.com right here