It was literally the bust of a woman, no real nudity. Imagine an inch above cleavage upwards, I suspect the original guy who seemingly tries to please everyone if you check their replies on feedback [1] just wanted an excuse over time to discontinue for a while for numerous reasons (career, ethics & he was the face of it, 20k stars) [2]. (I also wouldn't necessarily want to be associated with something like this similar to the insightface guy due to the potential for abuse and it has probably grown a lot more than he expected [3]) and 90% of the new features were added by henry. The first version of roop was barely a derivation from the example code in insightface [4], it just added a gui.
It was literally the roop guy had issues because of where he's from being very prude/religious, so the fact they showed any cleavage at all set off his alarm bells and well roop died.
There was no cleavage, it was an image like this (https://i.imgur.com/cl6MFhi.jpg) but regardless good for him in starting it but outside of the tkinter gui he added to the original code he didn't contribute much beyond that. For the casual people putting themselves in movies and memeing their friends this was probably the best thing to happen to the project as henry brought it to where it is now.