I just discovered Whistles, a British store that looks a little like Topshop. I love their dresses too much. Just look at some of them!
Estelle Lace Dress - This one is completely Blair, and I love it. It would be a perfect Christmas party dress.
Evangeline Feather Dress - And this dress . . . Perfect for all the Swan Lake craziness bound to follow The Black Swan. Plus, who doesn't want a dramatic feathered skirt.