Does it have to specifically that version of her. On the page itself, there's an image of her wearing something that covers her shoulders. Otherwise, you'll have to use a customized corset with metal boning as the harness.
I'd strongly recommend going with felt or muslin so that you'll have a lot to work with and it's more economical.
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RWBY: Blake Belladonna - Gambol Shroud FUNCTIONAL
RWBY: Pyrrha Nikos - Milo FUNCTIONAL
Planned Cosplay 2014
- Winged Armor Year: Tentative
Kayle The Judicator - Non Helmet [League of Legends]
Pegasus God Cloth - Silver [Saint Seiya]
Jaune Arc JNPR - Functioning Shield [RWBY] Building
Anime Milwaukee?: Fri?