When is a painting junk ... or just not finished?

If I reach a place in a painting that stops me and I do not know how to finish it or I don't like what I have done, I sometimes get discourage with it and put it in my big stack of junk work. Every once in a while I look back through the stack just to see if I get a new idea about any paintings there.

These three paintings have been sitting in that stack for a while. I was looking through the stack ealier this week and these three seemed almost right. They seemed so close to being finished. I pulled them out and thought maybe they just needed a couple of tweeks here and there ..... Yet after working on all three for a while .... I am still not satisfied that they are any better. Besides that, I may now have painted them into the ground ..... Paintings seem to change magically when you don't look at them for a while so I will keep them around a bit and then look at them in a week or two. Then I will decide if they go back to the old junk stack or not.