Trying to paint a Shroud Overlord as Mephrit Dynasty, need tips

Hey fellas, I picked up a shroud overlord, and I love the Mephrit dynasty. I want to make it a Mephrit scheme, but I’m worried about screwing up the colors. The body’s gonna be simple, Leadbelcher with a nuln wash, but I’m confused on how to do the orange blade/shroud, and how to get those green-ish plates they have. Any tips would help, I’ve mainly just painted Orks and a little bit of Imperial Knights. Thanks!