Could someone tell me what Whitestuff sizing is like please? I am a 14-16, with 32H norks. I'm usually a 14 in Wallis, Next, New Look, but a 16 in Miss Selfridge, M&S ... I've got my eye on this [[http://www.whitestuff.com/time-and-again-dress-prod404913_twilight_b/ dress]] Thanks x