I try to keep this quote by Jasper Johns in the forefront of my mind. I sometimes have a tendency to overthink, or overwork an idea. This can be good, as in exploring all options, but it can also create a muddy mess. So whether I am setting up My Little Still-Lifes or sketching, I am most satisfied with the results when I end up keeping it simple.
That being said, playing in the mud is a lot of fun.