Next up in the Evil Queens of Golarion: Varisia. Specifically, the Varisians, since Varisia is home to many ethnicities.
I’m less confident in this choice than in the others. This has an actual sihedron right there in front. Well, almost. The sihedron has seven points and this has eight, but it’s so close. It also has a light, airy, boho feel that seems very Varisian to me, even though I wish it was more colourful. It doesn’t give me a sense of power, though. You couldn’t sweep into a room and command attention wearing this. It’s more of a “chaotic good member of autonomous collective” dress, rather than full out “evil queen” dress.

Sihedron Rune, for comparison
The dress is from Alexander McQueen’s Fall 2014 collection. He’s one of my favorite designers, and once said that he wanted people to be afraid of the woman he dresses. So there will be a lot of McQueen in the Evil Queens of Galorion.