My wedding dress was just perfect. It's halfway beetwen mermaid and trumpet silhoutte and it dresses really well. I bought it as a size 6, but I'm a size 2 and it fitted perfectly! The back is a corset style, so you have some room to make it tighter or looser. Only the hip size is not adjustable.
Another feature I love, is the cathedral style train (a train is an extra length of fabric that extends from the back of your wedding dress and trails behind you as you walk), and there is a hook hidden on the skirt that can make the train smaller for the party =)
Last but not least, there is a beautiful embroidery in silver color on your left side of the waist. Enjoy it!