This is amazing. It just shows that you can be a size 16 + and still rock out a designer outfit. It is not about what you weigh but all about how you know your body – wear clothes that flatter you, dress in such a way that you feel confident and it will shine through.
One way to really get to know your body shape is to continually try new shapes of clothing, wider straps on dresses, cross over straps, knee length, mini length and so on. By doing this you are going to find a shape that suits you.