I have been dabbling with this for ages. It's a tutorial from Corel Painter magazine. It looks nothing like the version in the magazine. And now I'm bored of it. It's not exactly the most interesting subject matter. So now I'm posting it here, and that means I don't have to work on it anymore and can do something else instead.
(If only I had time to sit down and learn it properly... I have such a long list of arty stuff to do when our house move is finally over.)