Theme for this block is herringbone.
I have used Threaded, tied, double, couched down with bullion and french knots, detached chain, and cross stitch.
Along the top I have tied herringbone with a bit of a variation instead of tied by the loops I pulled the loops down all to the same level so that it looks like a line, it changes the look of the stitch completely.
I am still playing about with ideas. I hate to spend a lot of time and effort into something if I cannot find a use for it. Thought it would be okay just to learn stitches and technique, but it is not working. Really do need a theme or purpose for these blocks. I have thought about making them into bags. or cushions or covering Mums small fabric chest. Still pondering will have to decide later. I love sewing these blocks.