I've skipped a few in-between stages. Particularly the last one where he had purple hair. To my way of thinking, (once I started thinking that is), he is his music and his clothes, and that's where the color should be. And that's why I preferred to work from a black and white photo.
Sometimes when something is done as well as I can do it, I stop and leave it. But this painting is particularly challenging, and I know it's not finished. I'm trying not to give him too much color, to keep the color in the clothes. And I'm not going to age him, he's doing a pretty good job of it without my help.
So I'll put it on a wall and wait until something about it really annoys me.
Sometimes it takes a really long time.
Jasper Johns once said " Take something, do something to it, then do something else to it."