Saki-chaaaaaan!!
And remember, always use chan after her name, you bastards!

This one was fun, but also I had to take many liberties because Nina-chan is more dressed than Saki-chan. I made Nina-chan's bow the color of Saki-chan's horns, but based on one of her attack CGs.The others have her with pinkish horns that are too close to her hair, and it made Nina look like she had huge cat ears. I colored her hat based on the flower on Saki-chan's head and the bow on her back the color of Saki-chan's tails.
I made her jacket the color of her gloves and skirt and tried to incorporate the colors of her bra and collar, including the hearts. I wanted to make the drawings on her skirt and boots the color of Saki-chan's womb tattoo, but it looked bad.
TL;DR: I wanted to make Hecate colored after Black Alice. Blonde, red-eyed Hecate looked hot, but the frills of her dress were not worth the trouble.