Dangit, years of porn (and some of the artists on here) have conditioned me to see school uniforms as inherently obscene. I did such a double-take when I saw this shot, like “how can they get away with this graphic smut?!”

Which makes me wonder, will pony Twi even be in this film as a human?  
Also, these “bad girls” have boring designs compared to the Dazzlings.

Guessing that’s Human Twi, and that’s the uniform for the school shes been attending all this time. Probably a rival school that clashes against Canterlot High in the next film.

School uniforms!

Designs aren’t the best, but then again, the Dazzlings had completely ridiculous designs and look how they turned out.
 
I like the one with Wonderbolt hair.