Your choice of evening gown should depend on the
formality of the event. If it's a conservative and formal occasion then
covering up your shoulders with a shawl is a must. Otherwise you can go for
sexy styles (such as side split, side cuts) that show off more skin and demand
attention.
Dark colors are popular and acceptable choices for formal dress because
they portray a sophisticated and classy image. But again, it depends on the
formality. Also if you want to stand out from the crowd you can wear evening
gowns in just about any color - or print for that playful summer look.More formal evening dresses at http://formaleveningdress.co.uk.