Interesting design and I'm eager to see the final result. AFAIK, that is true Kingussie pleating -- for Reverse Kingussie, the knife pleats face to the center, and meet in the center to form an inner box pleat. If you turned the skirt inside out, you'd be looking at RevK.

And lovely material, too! Hmmmm, I have some saffron Tencel that came by mail and turned out to be too light for kilting. . . might have a use for it after all!