The Secret of the Forest is an oil painting on a canvas. This oil painting has movement and proportion. The feeling and look of action or movement of the painting is the fall-colored leaves because it looks like they are falling. The leaves look like they are falling because of the value between light (at the top) and dark (at the bottom). The movement of the jig-jags on the birch trees give the leaves a sense of movement. The comparison of the size relationship between the light-colored trees are the proportion part of the painting. The trees become smaller when you look further into the painting. Also when you look further into the painting, the colors become darker.