I decided to use Saussure's Semiotic model to analyze my work. My signifier, according to this model, would probably be the word "slave", as it is a word that is easily recognizable to most people, and it symbolizes control. My signified would probably be the leash, as it indicates ownership, which is what the viewer is supposed to infer from my work. From there their eyes will drift to the man on the other end of the leash to see that he is the one that is owned, and the signifier of my illustration adds a little more context and impact to the already pretty strong message given by the signified.
