The value range was set from lightest to darkest. The first image (Narrow Value/Light) represents how stressed I am because of college. My finger is directly pointing at some of the classes I have which is stressful. The second image (broad value) represents anger. The last image (Narrow Value/Dark) represents how you should let go of your past out still hold on to it, in some ways.
Contrast from light and dark can represent each mood in different ways. Even though it’s a black/grey and white color it has a story to for it.