Hi!Unfortunately, my English is not well!
I use fusible interfacing onto the satin before I sew.
I made the tree of life with a sandwich block. I wrote the pattern with air eraseble pen.
The whole blanket made of individual blocks. I will sent(on this site) pictures for details! When I sewn a metal-thread, I used a metal-needle, I tried a lot to succeed!
I wish you much patience and a successful, enjoyable work! I did this.