Arwen's Requiem Dress Costume
Includes: Underdress has embroidered upper sleeves, gorgeous trim and floaty lower sleeves. Overdress has fishtail train and more exquisite trim.
Cost: $300 plus materials.
Click here for a detailed description of how I made this costume and for more photos.
References:
Photos from books and the internet
LotR Costumes at Alley Cat Scratch