I've already finished the embroidery on the cover. The borders will be decorated by a stitch that I invented :-) It's double faced, so it's the same inside as outside the pocket.
Draping the pocket seemed difficult to me, but finally I remembered a technique of compromise, that helps me a lot when I'm lost. You must pin the edges to edges of the other textile, then find a half and pin it to the middle of the other one. Then find a middle in each part you created now and repeat until the end.