Brownbear,
I knew why I liked your build so much and it's because I've seen a very similar bike made by Purebread out of Montreal.
Here's what it looks like :
I'm not saying you should copy his paint job or build but I think when it comes to that green/black combo with the brown seat some additional color here and there might be nice. White works well but one thing I really liked about this bike in person was how the fuel lines were red and he used a black/red braided spark plug cable.
You can get them from DCC here : http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-electronic-ignition-parts-vintage-cloth-spark-plug-wire-kit-red-black-p-elec-plugwire-cloth-br.html