I'm not the OR of this edit, but can someone please fix the body proportions, and expose Yunyun's vulva a bit? You may also add leaking vaginal fluid between Yunyun's crotch and around her legs.
Also, can you expose Yunyun's breasts (and nipples), and make Megumin grab (or squeeze) one of them, too?
If you'd like to start from scratch(?), you may download a version of the drawing, the bottom part of which, originally left uncolored, was painted by Misusage.https://archive-media-0.nyafuu.org/e/image/1559/04/1559044908517.png