A nice twist of her right leg/knee towards the viewer really sets off this pose, giving it just enough of the sense she is in a sort of restricted motion, as does the arc of the chain connecting the clamps. Perhaps even more subtly, the strap connected to her collar implies a progressively more stringent psychological approach (in reference to the poll below), reinforced by her vulnerable nudity. Indeed, where in the preceding piece Kelli is physically off balance, here the unbalance is much more psychological, as her facial expression indicates. And the chair...love the red herring aspect of it, again from the previous piece. Good place for her dress, though...can't have that fine garment tossed on the floor, can we?