I have discussed the hull construction process in earlier posts, which you can find via the above search bar. To recap, you take the hull design and “loft” the shape of each section or bulkhead, from the drawing. You then cut this out of 6mm marine ply (or equivalent), mount each of the stations onto a strongback, and now you have something which forms the shape.
I also need to add a keelson to the picture. A keelson is a long, keel-like piece of wood which runs from stem to stern, connecting the bulkheads. I cut one already but it turned out to be too short due to a miscalculation on my part. Generally I cut a thin (about 2cm wide) outline of the keel of the boat, from a sheet of ply.