The pair of leaves in each corner is accented by a small yellow circle beneath. The leaves are done in long and short stitch and the circle is done in satin stitch.
The outline of the Celtic Knot is done in whipped back stitch. I did the back stitch first trying to keep the stitches the same size so the twists would be the same distance apart. The longer the back stitches the farther apart the twists will be.
The filling is first stitched over in chain stitch. I used several strands of thread to make the stitches thick so they would stand up above the outline. I worked the Satin stitch from one side to the other giving the filling a rounded look. All I have left now is the flowers and the assembly. I hope to have the finished project posted soon.