Let's start by adding welds. Joints and metal plating have to be fixed somehow.
On a rare occasion, an accident occurs to your advantage. I tend to take my chances mixing acrylic paints on top of one another. This time, it worked out. Stressed paint = good heat stressed paint.
Let the detail painting, drawing, battering, weathering etc. start. My new favorite medium is oil paints. A mix of black and burnt umber = a nice realistic oily appearance. Since this machine is a mechanical walker, it's gotta have grease in the joints etc. Note one of the hydraulic lines has a leak - clear read liberally applied and drug down the leg to simulate the leak.
Some interior detailing and the beginning of the exterior detailing/rusting/battering etc.