The final painting
I nearly always work from a color plan, sometimes I store this in my head, but more often than not I generate a little thumbnail of my planned colors. Here's an example of one.
However despite working from this carefully considered plan, there can be a point in the painting of the subject where you realize it's just not working.
Sometimes it's important to let the painting speak to you and work from that, especially nearing the end of a painting. Forgetting the old ideas or plans, can build for a stronger finished painting.
This rethink, is a scary time, when you can feel everything has gone wrong and you're never going to be able to pull together a strong piece. But on occasion, ironically enough, these times are when you produce your very best of work.
Though different from its original plan the end result is powerful and I think a great color choice. Sometimes a painting just needs to evolve as you go along...