Your pixel control is insane! I love all the little details and how clear they are! Amazing job!
Whoooa, very cool detailing on the wires (both on the piece itself and on the very neat "frame") !! Maybe the dithering is a little excessive, but I'm not bothered by it.
The only problem I see with ths piece (and "see" is stretching the definition) is that while the color count looks low, running it through the PJ Image Specs tool there seems to be about 20 different shades of white in the piece, most of them totally indistinguishable to the human eye!
I love it! this piece is oozing with personality! great use of so few colors and small scale to capture such a complex character