Marie, the foot pictured on the right is the one I have in my kit.  Sadly, for all the time I have owned it, I never opened up the kit and give the technique a spin. But I seem to recall it is motion quilting/sketching with yarn—couching.  I could never get into moving a hoop around with my hands to form a design or couch.  Guess I got frustrated too fast with the stitches not being the same size and gave up.  Hence the reason I found the kit hiding in the closet!