Painted on a 20 x 16 canvas in a circle. I guess it is not so much oval, but circle. The change cause me to have to extend more of the left side than just the tree tops. The sky took some work to get it to look good, but in the end everything worked out. I love the comment about trees and politicians in this episode. I forgot to highlight the trees outside of the circle, but I guess they do not need it.