Hello, actual artist here. So there seems to be perhaps a bit of confusion over physiology, especially as regards the inquisitor. If we take the pose and sketch over it, finding the main body landmarks (breast, centreline, ribcage, etc) it shows us that it's a simple dropped shoulder pose, something that even I, in my less than athletic state, can replicate with ease.
I appreciate your contribution, but there are some problems here.
I'm definitely can't claim to be an artist, but I have access to both 2D & 3D professional artists and I've previously consulted with one of them as part of my process of understanding what's wrong with this image. But being an expert doesn't prove anyone's more right. Remember, Rob Liefeld is also a professional artist (somehow).
It's easy to pull off a similar pose, but there is a reason I've insisted on the "pics or didn't happen". I've posted a photo of a gymnast in a similar pose, but there are key differences between these poses which become more evident when you actually look at the line you've traced of the spine, and when you notice that the inquisitors arm is actually concealing the fact that her second butt cheek would be visible to the camera (try drawing in the hips and the centrelines for the legs). The twisting in the waist needs to be extreme to achieve that. There is a line that has well and truly been crossed here.