Unity/Harmony - Elements that bring a work together and make it work as a whole
Balance - Similar composition on either side of a work, symmetry, lack of symmetry is asymmetrical balance
Rhythm/Movement - Musical feeling relating to a series of repeated lines or shapes
Contrast - Difference which is notable and can relate to colour, tone shape and form
Dominance - A part of the work that seems to overwhelm the rest
Emphasis - The part of the work that draws the viewers' attention
Direction/Focal Point - The way the eye of the viewer is moved around the work
Scale/Proportion - The relative size of objects to each other and to the picture lane or environment
Pattern/Repetition - Repetitive shape and line that accumulates to become decorative
Depth and Perspective
Shape
Two dimensional area usually defined by a line
Form
Three dimensional object, actual or illusionary
Tone
The relative light or dark of an object
Colour
Primary, secondary, complementary, analogous
Texture
The feel of a surface, illusionary or actual
Space
The illusion of three dimensional space created by; Overlapping, Diminishing size, Raised baseline, Foreshortening, Linear perspective, Aerial perspective
scale/proportion
the relative size of objects to each other and to the picture lane or environment