What you need:
Four panels of the same size with backstitched edge
Ribbon or cord for hanging
Beads for edging/ corners (optional)
Start by fingerpressing all the edges
Attach two panels by catching corresponding backstitches as shown – each time from the top. Attaching a bead to every other stitch makes a nice addition – I haven’t done that on this, but try it one time!
It will look like this. Pull your thread as you go along, but not TOO much as it will distort the fabric
Continue around the corner fastening the hanging ribbon or cord as you go along. When you have done two sides fasten the thread, and leave this bit for now.