Actually I am not happy with the two figures still missing, so I decided to sculpt these figures from scratch. I started with the first figure:

I made a frame from two pieces of milliput (shoulders and pelvis) and some pieces of copper wire, forming the back and two legs. After bending this frame to the final pose, I fixed it using more Milliput. Then I sculpted the boots and the trousers legs, which are not that detailed higher up, as they will be covered with the coat later on.