Here is a fab online shop for stunning evening dresses for every and any special event: prom, ball, cocktail, party and even wedding dresses.
I would love to wear almost every dress:) So if you have an event that you'll need to dress up for I suggest you to check MsDressy.co.uk and shop your stunning Evening gowns UK dress.
My favorites are these (by the way most of my fav dresses are with open backs, which is something I'm obsessed about):
White dress- Here
Blue dress- Here
A line spaghetti straps mini- Here
Purple dress- Here