My green belt is sewn in silk brocade, a piece I bought when I was in China years ago. The color is more like in the last photo, a lovely olive green.
I wish I could tell you that I made a pattern for this, but I just winged it as I went along. The inside is a remnant from the raw-silk jacket.
In the back I made a little button-hole for the sewn string to go through. That way, the belt easily wraps around itself, and is size-adjustable.
The finished belt.
Beautiful, lovely fabric. If only I still had a waist, lol! 🙂