Modeling the mountain ridges on upper level

Here are some images of the foam boards cut to exact fit using a paring knife. The boards are fitted into place and numbered. Later I will disassemble the boards and glue them back into place using the corresponding numbers. After the glue has dried, I will come back through and model the shape of the foam using a hot wire cutter from Hot Wire Foam Factory tools. I use my sketches for reference, the sketches come from observing photos taken of the actual area I am modeling. After the initial carving, I can fine tune areas using a hand rasp and sander.