Kate Middleton chose a beautiful classic dress that truly shows her figure in a great light. The neckline, bodice and skirt are balanced and make her look tall, slim and curvy, if she has a figure flaw- this gown certainly is hiding it well. I believe this is a perfect reason for sewing our own clothes, although we can't always turn out an incredible fit like this- I believe that we can get closer than just choosing something off a rack.
I imagine this wedding gown is going to guide fashion a bit toward fitted, classic dressing and I think it's a good thing too.