A very surrealistic construct worthy of any of the post-industrial schools of neo-realism. Precise and sharp, it's almost like a pencil drawing and/or charcoal on adobe or plaster. Very impressive technique wise, it's a technical and artistic marvel. A top entry into the challenge.
This takes me back to basic art class when the teacher would try to explain tones, and would have us draw a black and white image with charcoal. We all failed miserably, but you have clearly succeeded here. I love it.