I often have paintings that I complete, of which I am unhappy with, for one thing or another. At times it is the composition, or parts of the painting do not work. Some, there is no saving, and are destined for the rubbish bin. The little painting above, watercolour  6.75x4.5, is one such painting........saved.
It's of a woman pushing a baby buggy. The background did not work, I had made it too cold, and it was going to be difficult to change what I had done. I left it for a while and returned sometime later to see what I could do? I used a bit of gouache,  mixed with watercolour, just around the head and shoulders area, to push the background back and separate the figure. It worked.