The giant spider limb actually

The giant spider limb actually highlights the issue with how she’s drawn.  If you follow her butt up, that limb is coming from the centre of her back, but according to her top half, it’s coming from her side.  So in order for that to be her side, she’s swiveling at the waist.

Also, when 2 people are being surrounded, the wise thing to do would be to stand back to back right?  Instead they are doing the complete opposite.