The image above was initially begun (as you may be able to tell,) by placing "masks" over different areas and using an airgun. I enjoyed doing the sky and the bits going over the moon. But the card I was using as a canvas wasn't really suitable, it absorbed too much liquid and the end result was too speckly.
So I thought, what the heck, I've got a new scanner, let's see if I can scan it in and do something with a computer paint prog. So I did.
The result - so far - is below. FB.