II ended up dong most of the colouring on the Steve figure in coloured pencil rather than pastel. Given that I was working on carrtridge paper rather than textured pastel paper, this seemed like a better option to get better coverge and minimise smudging.
After I'd finished Steve's detailing and added the silhouetted figures and the bunker in the background, the finishing touches was to add the shadows and textures on the ground and finally the wording whiich makes the whole joke.
