Getting Renderosity spam email, I noticed this clothing piece by Powerage: Miraossa Legend. The idea of the gold/metal swirling over the surface fits very well with much of the concept work done so far and brings the mixture of it being a pattern on metal with the headpiece to the metal on green look.

[Miraossa Legend clothing by Powerage via the Renderosity site/store]

A few other Powerage sets offer further ideas like: Apparitions and Purple Esmeralda.