I'm not the OR of this edit, but I'd like to request some further modifications.
* Fix Yunyun's body proportions.
* Expose Yunyun's vulva a bit.
* You may also add leaking vaginal fluid running down Yunyun's crotch and thighs.
* Expose Yunyun's breasts (and nipples), and make Megumin grab (or squeeze) one of them.
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
To whoever posted an attempt threads ago, keep it up (assuming it's still in the works)!