Buttonhole stitch . . .

I've had a bit of a rest after last week's marathon - these pics were not done for TAST but for a hands-on session at the Macclesfield Embroiderers' Guild meeting in November where we could choose one out of five different stitches to play with. I was in charge of the buttonhole table and did these samples of a range of possible variations. So I haven't worked them again for TAST, but in my next stitchy post there will be a smaller sampler with some further interesting applications.
Using buttonhole to fill a space is interesting. If you work from the bottom (here, right), of the space, each following row will come over the ridge of the stitch and give a smooth effect.Doing it the other way round, from the top of the space down, you keep the ridges. These were circular pieces because they were in a small round frame. Obviously need finishing. One day! And this one, just 2 lines of buttonhole, but I like the effect of the space between them.