The juxtaposition of images can be described using a variety of synonyms and phrases. One alternative is "visual collage" which conveys the idea of disparate images merging together. Another term is "image montage" which suggests a composite of pictures pieced together to tell a story. "Image pairing" or "image comparison" also capture the concept of contrasting images side by side for effect. "Visual contrast" is another way to describe the use of opposing images to highlight a message. Lastly, "image integration" implies that different pictures are intentionally brought together to convey a greater meaning or idea.