It looks like Paula took inspiration today from Dolce & Gabbana’s summer 2011 collection entitled Sicilian Sensuality which was almost entirely in white. The collection had the signature sex appeal of the house made romantic by copiousness amounts of white lace. Paula choose to pair her innocent white look with edgier accessories including a black patent belt and a pair of fabulous rock n roll heels from one of her favourite shoe designers Ruthie Davis. These heels are no longer avaliable in store so have been extremely popular. To finish off the look, Paula’s hair is styled with soft, loose, feminine waves to match the feel of her outfit to create a overall fresh, innocent summer look. See Paula’s look here at the spring/summer 2011 show.
straightupstyle 
It isn’t a black patent belt it’s actually a solid metal belt with a padlock and chain for detail. It may be one of the belts Dolce & Gabbana designed a couple years ago; it looks exactly like the one seen here: http://coolspotters.com/accessories/dolce-and-gabbana-padlock-metal-belt/photos_videos#medium-1250851
there are several picks of it if you want to add it as part of your entry