I just colored and completed this in April 07', and I have to say Im much more satisfied with the way that Im doing textures and shadows. I find that the colored outlines (vs. black) looked good...until I started going for semi-realistic tone.
This was drawn last fall, a day or so after receiving my California Drivers' License. For anyone who knows of my San Franciscan ways, driving is not one of my strong points and I never really thought to try and pass the test until I moved down to SoCal.