I am showing this so you can see how it works, it's a sort of weaving, with the weight of the bobbins providing the tension. The fans are done in cloth stitch which is quite simple, two workers weaving in and out of the passives. The ground stitch is more complicated, with more pins, and I get lost knowing which pairs to do next. Practice helps, and I am ploughing on, because I hope to get round and then try again.
Helpful suggestions are welcome.