I don't think it's the over-exaggerated, over-emphasized hourglass figure that's the problem with body structure; we have plenty of those. It's probably not the odd manner in which the left breast hangs; scratch that up to questionable shading and a convenient lock of cleavage hiding hair. Or that the definition of the bottom of the ribcage is way too far down the torso. I don't even think it's the double-jointed knee. But that's one god awful hand. It reminds me of a Monty Python skit. Ohhh fishy fishy fishy fish!