Building Pyramids - Hedebo Buttonhole Stitches II

Part II

After finishing the second triangle

Connect the first and the second triangles

Three times
(I use pins to hold the triangles)

Make Hedebo Buttonhole Stitches on these three threads

Whip down to the base of the pyramid

On the way down to the base, you can make the half circle decoration.

Cotton thread is not suitable for this type of Hedebo Embroidery (too soft when it's finished)

Here I tried linen thread

Linen thread #50/3
Thanks to D1-D2's suggestion

It looks much better now

Before finishing the third triangle,
you can try to make the half circle decoration.

Here is my practice piece (28ct linen + #50/3 linen thread) 

Happy stitching!!!