Thank you for your kind comments!
They are not paper pieced, just conventional piecing. The pattern isn't great, and I ended up cutting the pieces longer than the pattern stated. I also then squared up the blocks before sewing the red middle section. The pattern isn't complicated, but just time consuming. Cutting out and sewing just one took ages. I ended up making 20 of these and cutting out all the fabric in one go was much easier.
I will try to find the pattern if you are interested. I scanned it some months ago, but can't lay my hands on the scanned copy...