They are beautiful. I am especially taken with the first one.
You showed your backing and the binding. I teach a binding class. There is a cute trick to getting those corners of the binding to meet exactly when you turn over the edge. When I put up the first side, I take my nail or a pin and I push the binding that is on the corner and push it over the edge of the adjacent side it is taking up that extra and then I fold over my second side.
If you need a photo pm me and I will take one