For me this doesn't meet the challenge because motion panning isn't just moving the camera, it's moving the camera WITH a moving object, so that the moving object is in focus and the background, non-moving objects, are blurred.
sorry. This isn't motion panning. There is motion but motion panning involves tracking a moving subject with the result being a sharp subject and a blurred background.
That aside its really hard to see what the heck we're looking at.