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.
Nature vs Man Made I was unable to find the artist who created this sculpture, but I think this image is powerful. It directly comments on destruction and creation. Juxtaposing a paper mold growing from a tree makes the viewer think about paper and waste.