Wow, this looks dope! Guess, life did not find a way after all.
I tried to address a few issues with the pose. Something about the perspective bugs me as well as I did not entirely figure out her legs and feet, so you may look into that as well.
The main problem is that you were determined to show both her boobs, which visually pushes her torso to the right, but you also needed the bit for the back and thus the whole figure got widened. The original also seems a bit awkward due to the rotation of her right arm, body and head. The sketch in the top left shows how the torso would be bent to make that pose work (but it is still uncomfortable). Or alternatively, she could be bent forward much more.