Cal is manipulative and clever. Aron is like the puppet and Cal is the puppet master. For example, when Aron shot the rabbit, Cal becomes jealous and manipulates and confuses Aron, ultimately trying to get credit for the shot. Cal's nature resembles that of a puppet master who is able to sway his puppet to his needs.
This photo shows Macbeth killing King Duncan with the dagger. The theme of this is sacrifice because Macbeth killed King Duncan because Lady Macbeth told him so. The imagery shows Macbeth doing what he never though he would do and that's take a life. A quote: "I go, and it is done; the bell invites me. Hear it not, Duncan; for it is a knell That summons thee to heaven or to hell".