I found this outfit on ebay and snatched it up for my daughter. She loves it. The medium (sz 10-12) fits her quite well, and it's very pretty. No pictures, sorry, but EofA seems to have covered that part. The sizing is accurate and the fabric is nice - it flows as she moves, and is soft and satiny without that cheap polyester feel that you sometimes get with Halloween costumes.
I would definitely recommend this, especially if you can find the doll version to match.