Looks pretty accurate to me, I don't think you'll need to change anything.
Good to know. Thanks.
After the "not-Emperor" will be the Primarchs. All 18 of them, and for pure funzies, done in their order of in-universe discovery. So Horus will be up first, and he'll be done in Luna Wolves' colours.
Anyways, I'm good now. I'll definitely post pics when it's done (the not-Emperor model), but that may take a bit of time. I want it to look really good.