Juxtaposition - Juxtaposition is a contrasting effect. In this artwork a tree and a bomb explosion are both being contrasted. This works perfectly because the explosion represents destruction but the tree shows life.
In this image, we see a young man holding a paint brush and bucket filled with red paint, correcting graffiti on a wall which reads "Enjoy your life." The boy has taken a paintbrush and crossed out the letter "F" so it now reads: "Enjoy your lie.