Ah, very nice!
I mean, I've been through some Border Princes material and the name hadn't rung any bells to me, but what a nice little thing to do.
Back when I was still doing Chaos Dwarfs I did the same with Zharr Naggrund - if the Lizardmen can fly off their pyramids, why couldn't the Chaos Dwarfs, through Shadow magic, snatch their own ziggurats away?
Standing between the Realms of Fire and Shadow, there stood mighty Zaramuskharaz' Citadel. It was a nice way to keep up with my favorite OCs into the new setting, although I am more unto Ogres and Chaos Mortals there days over there.
Painting Orange can be tricky, in my experience. They are looking pretty great, Artoban!
My current Dragon Rampant foes are Chaos Warriors lead by Crom the Conqueror, as well as pals' Perry Plastics XVth century fiefdoms and some other Imperials as well. XD