Glue along the bottom straight edge of the petal template first.
Run a line of glue around the top edge of the petal and carefully turn the fabric allowance over the template.
Smooth the excess fabric towards the centre of the template so that you get a nice rounded curve to your petal
Apply glue to the remaining straight edges of the petal and turn the seam allowances over
A completed petal. Repeat for the other petals