I originally opted for the Petite Medium in scarlet but i found the medium a bit too big (I'm 5'3"and normally UK12-14). The colour is absolutely stunning so I have been watching and was finally able to nab a Petite Small which suits me better. I also got the Regular Small in navy and find the extra few inches of length is great too. I just wish there were more colour options! I keep hoping for a clover green or teal or a more blue shade of purple. I wear each of the dresses every week as it's so easy to pop over tights and tall boots and feel elegant and comfy at the same time!