Philostrate. The thing I like about this costume is that it looks like a steampunked servant's outfit...without it looking too much like a maid's outfit.! The black and white give it the feel of servant; but it doesn't make you think "french maid."
CLAMP - Chobits 【Chii】
Your eyes only image by Clamp Chii Chobits anime
From Tokyo Bridal Festa 2012
chobits clamp new artwork
Chii from Chobits
From the Manga...
Artbooks » Chobits Your Eyes Only » Item 23 @ Kisuki.net
Chobits I have never watched/read this but it looks cute.