Print the pattern onto wash-away appliqué paper. Cut out patterns for the color pieces, making sure to cut inside the lines to account for fabric thickness, & iron to fabric, lining up 2 opposite edges with the fabric grain.
Cut out leaving a small seam allowance, slightly less than 1/4 inch. Trim the seam allowance at the acute angle points.
Glue down two opposing edges.
Glue down the other two edges.
Trim the little flap so its edge is parallel to the edge of the appliqué piece. Here, the right flap is trimmed and the left is not.
Put a tiny dot of glue on the flap & bend it over on itself with tweezers.
Check from the front & make adjustments until you no longer see the flap from the front. Be careful not to distort the point.
For a square piece, use much the same technique. Press the wash-away pattern piece ensuring it's aligned with the straight of grain; trim the seam allowance, and glue down 2 opposing edges.
Glue down the other edges.
Glue down the tip of the overlapping seam allowances.
The fronts with nice perky points.
Lightly mark horizontal, vertical, & both diagonal lines, plus the 1/4 inch seam allowance onto the background square. Line up all the appliqué pieces according to the pattern, and lightly glue in place.
These are appliquéd but not yet trimmed.