Juxtaposition

Juxtaposition is the arrangement of two or more ideas, characters, actions, settings, phrases, or words side-by-side or in similar narrative moments for the purpose of comparison, contrast, rhetorical effect, suspense, or character development.

With simple words, it means the contrast of two or more different ideas to create a message for others.

Remedios Varo: Creation of the Birds

This is an example of juxtaposition of combining an owl and a human made by Remedios Varo. :)