Okay, here are Weeks 17 (french knot) and 18 (Wheat Ear Stitch).
Although I have French knots everywhere, these are the ones I did the week of the TAST stitch. Not that it matters, I guess. Just random french knots nestled in the fly stitch. It adds some interesting texture.
Wheatear stitch. A little difficult for me to get the hang of at first (note the first stitch on the left) but it didn't take too long to grasp. Really an interesting stitch with lots of possibilities.
There's a little more over at my blog. I've posted a picture of the block but there's still more to be done. I can't decide which photos to include...