While juxtaposition can be used in terms of formal elements - for example, the use of agressive mark-making in contrast to an area of very controlled shading, or an area of crisp detail against something softly handled, it more often refers to concepts or imagery. An artist might juxtapose a machine-made object or urban environment against organic elements of nature, in order to highlight different qualities in the two. Note that the way this is done can dramatically change the meaning: we might regard the machine-made or human-created as representing safety and order against the uncontrollable strength of nature; or we might see the fragility and beauty of nature against the soul-less uniformity of the urban world, depending on the nature of the subjects or images and the way they are presented.

