rhythm and can be achieved by repeating any of the elements of design (line, colour, texture and pattern, light, and scale and proportion) or other design concepts in an organized and regular way.
The use of lines, colors, values, textures, forms and space to carry or direct the eye of the viewer from one part of the design or picture to other is called movement.
Unity in an artwork creates a sense of harmony and wholeness, by using similar elements within the composition and placing them in a way that brings them all together.
Repetition refers to one object or shape repeated; pattern is a combination of elements or shapes repeated in a recurring and regular arrangement; rhythm--is a combination of elements repeated, but with variations. Repetition, pattern, and rhythm in a Buddhist mandala.