I wouldn't be against the "can't stand still" concept if the loop was made more interesting and seamless, but right now, it's jarring how short the animation is, how often it plays and how out of place the end of the animation seems compared to their starting position, completely breaks the flow when it loops back. It really looks like some part of the animation is missing. I think a continuously active loop would have fit better and more naturally. As it is now, the animation feels like it just