Applique shapes are cut from freezer paper and pressed to the wrong side of desired fabric with a dry iron (no steam). Then using needle and thread and a long running stitch, fold the seam allowance around the papers cut edge, creating a smooth fold and sew in place.
Using a contrasting color of thread for basting, makes removal after applique easier. These leaves are ready to be appliqued.
Most applique shapes have curved edges. Convex curves like the piece to the left, gather in easily. Concave curves on the piece to the right, require some clipping to lay flat. Note the clip at the point of the scissors. This clip was made after sewing the basting stitch. Clips should go only half way to the edge in the seam allowance.
Use fine pins or a basting glue to secure to background of applique piece. Applique with matching thread. When done, remove basting then on the back of piece cut a small slit in the background fabric and pull out freezer paper.