Accepted conventions associated with organising the visual art elements into more complex units. Includes: - balance: art elements that are arranged to create the impression of equality in weight or importance. Balance can be described as symmetrical or asymmetrical - contrast: juxtaposition of different visual art elements and/or design principles in order to highlight their differences; to create visual interest or a focal point - emphasis: positioning of visual art elements and/or design principles which are considered important in creating a focal point within the composition - harmony: relates to the organisation of the visual art elements or design principles into a unified composition. Harmony can be achieved by combining similar shapes, textures or colours, within an artwork - movement: illusion of motion created in 2D and 3D artwork, or incorporated into 3D or 4D artwork. Diagonal lines, expressive colour or diminishing scale of art elements or design principles can imply movement. - pattern: a regular arrangement of repeated or alternated visual art elements or design motifs, derived from combining visual elements such as shape, line, colour - perspective: artistic device for creating the illusion of distance (or a third dimension) on a 2D surface; such as parallel lines appearing to meet at a single point on the horizon, known as the vanishing point. Also, creating the illusion of distance by reducing the intensity of colour, the amount of detail and the size or scale of the subject/object, so as to imply its distance from the viewer - proportion: relationship of scale between the parts of a group within, or beyond the parameters of the composition of an artwork. Using the relative size of visual art elements against each other can attract attention to a focal point - repetition: repeated use of certain visual art elements multiple times to create pattern or emphasis; incorporating repeated sequences into an art form to emphasise aspects of production - scale: scale relates to size or proportion. In a composition, the differences in scale can draw attention to a focal point or emphasise particular aspects of the artwork - unity: unity means the organisation of the composition into a meaningful visual arrangement and can be achieved through such means as re-use of imagery, visual art elements or design principles. Unity does not mean uniformity.