I did this in ink and colored it in Photoshop on a tablet. I've taken it as far as my present level of skill can achieve. I'm sure someone's going to have better ideas than me on how to improve it, but for the time I'm looking to give it a better background, 3-dimensionality, and more atmosphere. My ideal background would be looking down a street as the sun sets, reflecting light off the windows and sides of buildings, etc. Or at night with street lamps illuminating a humid atmosphere, with trash and particles blowing in the wind, etc. I just don't know what to do or how to do it. Should I use photographic references? If so, how so? I really don't like this as is. I'm pretty flexible on the coloring so long as the original ink doesn't get obscured. I'd appreciate any suggestions.............