I made some small but important adjustments to the drawing on this piece, which you can compare to the previous version, if you care to.
Sometimes you have to live with a painting for a at least a few hours or days (or even weeks) before certain things become apparent. In this case, I thought that a few fairly minor changes could strengthen the image, so I made them, even though it required a little work. Removing paint can be a dicey proposition, but as the pigment was still fairly wet, it wasn't a huge problem.
I have a worn down, fuzzy brush that, when moistened with turpentine, makes a fairly good tool for removing unwanted paint... sort of like an eraser. Then it was a matter of painting over those areas to make the corrections.
It can be a tough call, at times, whether to just let a painting go (it never wil be perfect), or to wade back in and make some changes. Thrashing, overworking or just general purposeless fiddling will ruin a painting. However, if I see something I can do that I know will strengthen the painting, I never want to be afraid to go in and take the risk of maybe making things worse.
I got ahead of myself and posted this one before I had really had the chance to live with it long enough to see it. Seeing a painting from different angles, different distances, in various kinds of lighting, is an indispensible part of the process of assessing its strengths and weaknesses. You may spot something important just walking by (in my case, probabably on the way to the fridge).