Last (but certainly not least) of the Ministry Mares: Twilight Sparkle, of the Ministry of Arcane Science. Since starting this project and designing this emblem, I've since found one that strikes me as more impressive. Still, my design matches the set, so I'll run with it. (So glad the most recent episode came out before I did this piece!)
Fallout: Equestria is a fantastic read, I recommend it to anyone who is a fan of My Little Pony or Fallout. I've wanted to do something in honor of it for a while, and finally I settled on the Ministry Mares. (Mostly because I couldn't find any decent images of them, or their emblems, online.)
Fallout: Equestria belongs to Kkat, MLP:FIM belongs to Lauren Faust.
(And no, I haven't read the series of side-stories. The original was enough, kthx.)