City and Guilds Patchwork and Quilting FORM MODULE

I am really enjoying this module - and I have almost completed it. Here is the resolved piece. We had to make a 3-D scene based on a landscape view. I chose the view from the end of my street - the viaduct (was a train line - now a cycle track- or it will be when they reopen it).This is the 3D scene that I made from painted card and acetate. It fits in a C6 envelope.
This is the view from the top showing the zigzag sides and the layers mounted on the folds so that it folds out to be a 3D scene and then folds flat for storage inside the envelope.