Heh... Even though everyone else has said it I'm going to just have to say it again...
I own that book!
Well I bought if for my boyfriend whom which I thought it might be nice for us to draw robots together in bed as thats what he likes drawing and I'm not very good at drawing them at all.
But yeah we recognized you image from the book "50 Robots to draw and paint"
You have a great gallery and some really nice works!