I'm often asked this question. This can be a fine line... I can't tell you how many times I've heard artists say the following about a painting... "it wasn't quite right, then I went back in and I overworked, ruining the painting!" So yes, you can overwork it and at other times you can just be unhappy with it and continue to change it until you feel you've a good painting. This is the case of this painting I'm going to show you in the photos below.