There are at least two very different but correct ways of thinking about principles.

Using a chemistry analogy, the principles are the ways the elements “stick together” to make a “chemical” (in our case, an image). The principles help govern what might occur when particular elements are arranged in a particular way. The principles are based on sensory responses to visual input: elements APPEAR to have visual weight, movement, etc. The first way to think about a principle is that it is something that can be repeatedly and dependably done with elements to produce some sort of visual effect in a composition. Incorporating the principles into your artistic vocabulary not only allows you to objectively describe artworks you may not understand, but contributes in the search for their meaning. Yet all of these rely on basic structural principles that, like the elements we’ve been studying, combine to give voice to artistic expression. Visual art manifests itself through media, ideas, themes and sheer creative imagination.

Famous 2 dimensional art