I’ve spent about an hour playing with this picture. I keep going back to the smudge tool because I like how it feels and looks. I discovered a feature in painter12. You can set “preserve transparency” to true or false. When it’s on you can’t paint on a transparent area. So what I’ve been doing with this picture is to paint a flat colour for each section of the picture. For example: the moustache. Then I turn on preserve transparency. Then I can paint and colour and smudge to my heart’s content without worrying about staying in the lines.