Line: A connection between two points, either real or implied
Shape: closed continuous line, real or implied
Form: 3 demensional shape
Color: perception of wavelengths of light
Texture: how something feels or how it looks like it woud feel
Value: Lightness or darkness of a color
Pattern: repetition of point, lines, and planes based on a rule set
Contrast: striking difference between things
Emphasis: bringing attentions to a specific item or location with contrast
Balance: making two (or more) separate things equal in different ways
Proportion/Scale: size of one thing in relation to another
Harmony: all elements of a pice working together
Rhythm/ movement: change in location or position