I looked again and you may be right! Since the hand looked so flat I was thrown off by the thumb appearing on what I only imagined the wrong side, but it is folded over and just stretched down way too far--should be either positioned higher up or the rest of the fingers/palm not so flat and free of wrinkles to match it. I assume the confusing values are attributed to the fireball in her hand, creating highlights on what should be a dark palm.