Rest of the set is in the source link below.
Art appreciation Rarity cosplay set from Katsucon 2012 by Fenyx Design :)
Character: Rarity (Sweet and Elite episode variation)
Series: My Little Pony: Friendship is Magic
Cosplayer: Myself (shichosama)
(ETA: I might have over-tagged this.)
((ETA2: And I want fanfic so badly!))
(((ETA3: ..How is this so cute?)))