I started this costume a couple years ago, but didn't finish... until now!
Originally, a friend and I were going to dress up as Lea and Isa from Kingdom Hearts Birth by Sleep. Unfortunately, we kept putting it off so long that we don't hang out anymore, so I got myself together and did the Isa costume alone.
I wore this to PAX East a couple weeks ago. Not many people knew who I was, but I pretty much expected that. This was also my first time styling a wig like this, and I am pretty happy with how it came out.
The costume consists of purchased white jeans, black shoes I painted with white soles, a purchased black t-shirt, and (the thing I actually made) a sweatshirt. I searched thrift stores for a sweater and shirt that were both that light blue color to use as trim on a sweatshirt I made from scratch. It has welt pockets, which are just crazy to do in sweatshirt fleece. The wig has almost a full can of hairspray in it... there's still hairspray on a bunch of my stuff (like my computer mouse).
Sorry I don't have any good full-length or construction photos.