While working on these patterns, I've noticed some similarity in style to 14th century German embroideries done in brick stitch. Since both styles use lots of geometric motifs, that isn't too unusual. They may also have somehow influenced one another in some way: I just don't know enough about the history of either style to know.
Anyway, on another blog, the author is creating patterns based on 14th century German embroideries done in brick stitch, and one of her pattern looks just like one of mine, from the Russian source material I've been using. I thought it was very interesting.
See hers at Medieval Arts & Crafts: Embroidered reliquary box, fourth panel started and my Pattern #7.
In case you find yourself interested in brick stitch, check out the following:
A Stitch Out of Time
Medieval Arts and Crafts