Answer:

• Balance refers to the visual weight of the elements of the composition. It is a sense that the painting feels stable and "feels right." Imbalance causes a feeling of discomfort in the viewer.
• Contrast is the difference between elements of art in a composition, such that each element is made stronger in relation to the other. When placed next to each other, contrasting elements command the viewer's attention.
• Emphasis is when the artist creates an area of the composition that is visually dominant and commands the viewer's attention. This is often achieved by contrast
• Movement is the result of using the elements of art such that they move the viewer's eye around and within the image. A sense of movement can be created by diagonal or curvy lines, either real or implied, by edges, by the illusion of space, by repetition, by energetic mark-making.
• Pattern is the uniform repetition of any of the elements of art or any combination thereof. Anything can be turned into a pattern through repetition. Some classic patterns are spirals, grids, weaves.
• Rhythm is created by movement implied through the repetition of elements of art in a non-uniform but organized way. It is related to rhythm in music. Unlike pattern, which demands consistency, rhythm relies on variety.
• Unity/Variety You want your painting to feel unified such that all the elements fit together comfortably. Too much unity creates monotony, too much variety creates chaos.You need both. Ideally, you want areas of interest in your composition along with places for your eye to rest.
• Scale refers to the overall physical size of an artwork or objects in the artwork.