Here's a little stop motion video I put together that roughly shows the process and stages that I go through when colouring my work. I used pastel, pencil and paint all together in my work. I usually use the pastel for a base, the pencil for the detailed shading and the paint for the highlights.
I hope you enjoyed this little video and if I get a good response I'll make another for my next illustration! I know it skips quite a few steps, and next time I am going to take more photographs so it will be more indepth!