As much as Serendi's aesthetics tend to lean towards egyptian in style, it doesn't mean she won't dabble in other countries a bit herself, black and gold are good colours for most things after all, as so handily demonstrated here with a kimono matching her own colours quite beautifully.
As for why it's a latex one? Well, she's a bit of a fondness for the material, so why not~?
Made by the incredible Oddlyshinyfox do give their post of it here a little love too~