Virtually flawless image. Wonderful lighting, fine use of negative sapce. I'm not sure I'd opt for such cool tonalities on the flesh but I'm sure the decisionw as a conscious one and it IS eerie. I love how the concept "mechanical" is placed in opposition to the electrical component that, while the most brightly colored element in the pic, is NOT the subject of the pic.
I like your idea; it would have been interesting to have a mark on the ruler equaling the value on the meter display (kind of hard to do though). White balance looks off on the hand.