Don't you think that his arm ought to be much farther inside the meatgrinder to 'produce' the amount of meat displayed? Furthermore what's up with his bones? I don't think grinding his hand an arm would give you such declicate minced meat. Anyway, somehow the scene, though definitely gruesome, doesn't manage to really touch me. Thus I don't feel the horror one would expect. And I think it has something to do with the way you depicted the scene: contrasting the mutilation with a supposed to be entertaining ad. Somehow it doesn't work ... for me.