Make a small vertical stitch at top point of area to be filled. Bring needle upon left outline. Make a slanting stitch towards centre, inserting needle just below first straight stitch and a thread or two to right of centre guide line. Bring needle out on right out line. Now make a slanting stitch towards centre, inserting needle a thread or two to left of centre line. Stitches must cross at centre.
Make a small vertical stitch at top point of area to be filled. Bring needle upon left outline. Make a slanting stitch towards centre, inserting needle just below first straight stitch and a thread or two to right of centre guide line. Bring needle out on right out line. Now make a slanting stitch towards centre, inserting needle a thread or two to left of centre line. Stitches must cross at centre. 
