Same apple slice as before, but this time I added the rest of the apple and I used my extreme rectangle. I did not know if the orientation would work with the subject at the top of the vertical canvas, but I think it does. In fact, I love it.
Please see below, the image of the slice from last post. I learned a very wonderful thing and made a change to the painting. I learned that if your painting looks "dirty" check to see if the temperature of your shadow is correct. Mine was cool in a very warm painting and it should have been warm. I warmed it up and it looks so much better.