I'm going to be honest with you here, my model was not actually a robot. She is in fact a very nice lady. She's tall and strong and beautiful and can hold a difficult pose for a good length of time. The kind of figure one would describe as statuesque...for a couple reasons. While I'd love to hire her to model for action poses with swords etc she utterly sucks at the more sensuous poses. She won't relax, ever. Her posture is always perfect, kind of like a statue. Her back is always straight, her shoulders are always high and back So as I sat there roughing out this drawing I thought to myself "This girl's a robot!" At which point this drawing just gushed out the tip of my pencil including all the highlights and shadows.A classmate asked me how I did that so I did a quick demonstration over on the left hand side of the page. I'll reproduce that again for tomorrow's post.
The key thing to remember about shading a shiny stainless steel robot is that the shadows are exactly the way they appear on the actual model, all you do is exaggerate them.