OK, I can see both of those - but my first thought was femurs & an under-developed pelvis. Then, between the bridge & tailpiece (inside the Rott's mouth, so to speak), the neck covers the middle of a human mouth. And of course, in the upper bouts, kneeling on the dark wood facing the fretboard, are (left) a guy in a striped suit and (right) a woman in a matching long dress. All in all, an amazing piece of wood!
Peter