Thanks for the comments Guys.
Grubber, I like the rendered look.
Mike, Yup, reality's been done, I'm going absurd.
Bizzle, I'll try it and see what happens. I'm only a few hours in at the moment and my main aim was to pull it into the shape of the sketch. I'm verging between a case of 3d / 2d imbalance and really liking the awkwardness.
Gudi I'll post hires images as I get to land mark points, it's going to be a long trip.
Nerrazzi, the lighting is a from a spinning light right generated from a utility I wrote called Skycast. There's a free beta on my website here
Skycastbeta
It's like a fast skydome built for the multipass renderer, it uses two soft shadow kleigs and a specular kleig