This time it is Knotted Buttonhole stitch.
These are my first attempts done on my sample fabric and then I will work on my official sampler.
The green line is how the original stitch looks.
The yellow line is done by slanting the upright stitches on a backward of forward angle and they are different lengths.
In the third row I have added a bead before I worked the knotted part of the stitch.
Now onto the main sampler.