I did that pattern a few years ago, but changed the way the sleeve was made. Not only were their directions bad, but I'm very particular about the details and compare every last item to the movie. In the real Snow White dress, the sleeve has red gussets/pleats ..... not tear drops. To do this was simple. I chopped the sleeve into quadrants (not sure now how many there were, but think it was 4) vertically. I then added 3 inch sections of red in-between all of the cut pieces. When that was done, I brought the blue sections back together at the shoulder and sleeve bottom only, stitching along the seam allowance. At that point, the sleeve looked like the original pattern piece. It formed a red pleat that was only visible when the sleeve moved. It sounds harder than it was, but it definitely made a difference.