Value (sometimes called ‘tone’) is concerned with the LIGHTNESS and DARKNESS of a colour and is achieved by adding white or black to a colour to create tints (by adding white) and shades (by adding black).
The arrangement/placement of arts elements according to visual principles. Examples of formal compositional devices are the ‘rule of thirds’, and the ‘golden section’.
The image at the top depicts a photograph composed using the traditional ‘golden mean’ compositional framework. In this type of composition, places where the guidelines intersect are key points for placing important elements of your image.
The image at the bottom depicts a photograph composed using the ‘rule of thirds’ compositional framework.
Refers to the way in which visual weight is distributed throughout the art piece. A composition can be symmetrically or asymmetrically balanced, which means that both sides of an image are visually equal, or unequal, respectively.
The top image shows the difference between symmetrical and asymmetrical balance, while the image at the bottom shows ‘approximate symmetry’
Emphasis is produced by visually stressing the importance of one element over another in order to create a sense of hierarchy to control where the viewer looks first. Areas of emphasis may be planned using compositional devices such as the ‘rule of thirds’, or created using colour and so on.
Henri de Toulouse Lautrec - "At the Moulin Rouge", 1892/1895 Oil on Canvas