These first several photos are to convey the scale that most of this work is done at. These parts are fairly small and must be cut accurately, then your shokunin must process a lot of them. Andon #292 in the Goma gara pattern needs over 1400 of these pieces to complete.
Photo #4 is the jigumi, the base frame work that all of the kuimko zaiku pieces fit into. This panel will be filled, sawn rectangular, fitted with a frame, and have paper glued to it's back. The Japanese name for this outside frame is tsukeko.