Secelia Dote from Mobile Suit Gundam the Witch from Mercury.
For her base appearance use dark-skinned female, white hair, blue eyes.
Has two main triggers, seceliadefault for her main outfit and seceliarandom for increased flexibility with alternative outfits.
The main outfit consists of leotard, jacket, thighhighs, shorts, shoes. You can probably prompt these independently. In case you don't get the clothing color right, you can try adding the color before the clothing name, such as "white leotard".