Since I'm used to the back-basting method of applique I was having a heck of a time figuring out how to get the pattern on there, since you can't put wool on a light box and trace around a pattern.
I first drew the pattern onto freezer paper and cut it out. Then I pressed it onto the cotton fabric, which was pinned to the wool background. Then I stitched around the freezer paper with floss, same as I would have done with back-basting it from the back. I just "front-basted" it.
Then I removed the freezer paper, and trimmed 1/4" (or less) around the stitching, just as I would have done with back-basting.
I don't know if these pictures are in exact order, but I'm sure you get the idea. Now I just had to applique those pieces and then cut the wool behind them to the right size. It worked great and I've already used this method on something else I was working on.