c) Paint the background blue, the road dark grey and the buildings a lighter grey.
d) Once that's dry, add short downward strokes, or dots with the black pen for the windows - this takes a bit of time, but it's worth it! Then add any detail you want with paint and a fine brush. We added a sun, trees and little cars on the road (just a dab of paint for the cars. When dry, draw on wheels with the black pen), but it's really up to you. Instead of painting the sun, you could cut out a yellow circle, as we did for the desert island scene.
e) For the night cityscape - follow the same instructions, but paint the whole of the front part with the skyscrapers yellow, and the background black.
f) Once the paint's dry, use a black pen (and a ruler if you want) to color in the high-rise buildings leaving little rectangles of yellow. (again, time-consuming, but worth it). Colour some windows in though, so it doesn't look like all the lights are on...
On the road, for headlight beams, you could draw long triangles, then colour around them with the black pen. Cut a moon out of plain paper and if you have a metallic pen, dot on stars. If not, you could dot on yellow paint.