If you are considering buying a pair or Melissa's Lady Dragon Vivienne Westwood shoes, especially via eBay, you have to go over and read Michelle's post on Decline Designs.
She is currently in the middle of a mess with a pair of counterfeit Melissa's and gives a great breakdown and comparison of the real vs. the authentic.
I contributed some photos of my blue and red pair to show a side by side comparison.
Make sure you educate yourself on what you are buying on eBay before you jump in. Especially since eBay and PayPal are notorious (in my opinion) for making it difficult to dispute won auctions.
I put a bunch of detail shots of mine in my Flickr set, so you can get better views there.