all you need to do is add a seam allowance (turn under allowance) to your applique pieces- if using freezer paper cut the shapes out of the freezer paper- press to the fabric= add 1/8"=1/4" around the piece as you cut it out- then you can use that technique- if you already cut your pieces out to the (wool sizes) you will have pieces that are smaller- if you do needle turn-
fusable is an option- but difficult to add after the pieces are already cut out.