VIEWER DISCRETION IS ADVISED
This is about Martyrs from 2008 (France / Canada), not the remake.
There are two female leads, Lucie and Anna. Lucie commits suicide and Anna is captured. Finally, Anna is skinned alive.
Here is a video of the movie final:
It starts with the skinned Anna being hoisted and locked into position. Other important scenes are at around 3:20 and, especially, 4:16.
Now, my question concerns her anatomy after the flaying.
Why does Anna lack female breasts after the skinning?
I wonder whether this was intentional and there is an in-movie explanation or maybe a convincing analysis. But maybe it was a mistake or there were other reasons (e. g. technical, content rating).