Shape

Volume and Mass: The companion cube from portal is a 3d object that has volume and mass

((picture link : <a href="http://photobucket.com/images/companion%20cube" target="_blank"><img src="http://i602.photobucket.com/albums/tt101/Twigy_tag1/Companion_Cube_p2.png" border="0" alt="Companion Cube Pictures, Images and Photos"/></a> ))
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Naturalism and Distortion: Naturalism, a portrait of an object with the likeness of the subject even though we havent seen the subject or a photograph of the subject.
Distortion:  exaggerated shapes of the subject.

the cheshire cat is a distorted form of a regular cat with its big eyes and big smile.

http://weheartit.com/tag/cheshire%20cat%20wonderland

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Positive and negative shapes:

in a black and white picture the black is positive space while the white is negative space. sometimes black and white can be used to describe good and bad.

in this game cover the pokemon zekrom is the positive space and gets your attention while the white is the negative space.

http://herocomplex.latimes.com/2011/03/11/pokemon-black-and-white-keeps-the-brand-battling-with-more-than-1-million-first-day-sales/: