Seizhi is of course, totally able to be in both. That's because, as a magician's assistant (or rather the dance equivilent, which means a bit more of precise movement and a bit less of actual deathtraps) she's there to be distracting and occasionally put in a box which is then chainsawed apart. Though Mila did scrap that idea, in the end. But, the point remains: we want to make sure that Seizhi is able to be fairly passive during the dance, which is why she's able to put together a fairly regal, but incredibly distracting, outfit inspired by a peacock, what with the train of fabric made to look like feathers. 

Next to that, her own outfit fades into the background. Just as planned. She's got a tiny top hat set at a jaunty angle, a jacket with tails and just enough subtle sparkly bits sewn into it to be pretty. Fairly normal suspenders with tiny eye diagrams, black pants, she's there to actually do the dance and the pyrotechnics, and not mix up which is which. That's the plan at least. She... doesn't know much about the pyrotechnics side of things. Which is why she's trying to find another person to help out. And it's... not going great. Who knew trying to avoid knowing people would backfire?