I thought that green gown looked so similar to Princess Jupiter from Sailor Moon (
[link]) and my hair is long and brown right now, that I'd do an impromptu Princess Jupiter cosplay!
I know it's not *exactly* Princess Jupiter, but it could also be used just as regular ol' princessy stuff.
Necklace by

since I didn't have any green ribbon laying about.
Princess Jupiter (c) Naoko Takeuchi.