Unity can be measured by several criteria or applied as a technique to ensure a visually whole artwork. With this, we can train our eyes to see the level of unity in art compositions.
Proximity in the unity in art relates to how close objects or figures are to one another in a composition. Some objects can be positioned in patterns, or repetitions, while some are positioned very close to the other as a group.
Simplicity refers to the exclusion and limitation of art elements like color, line, shapes, and so forth. Simplicity does not have to be relegated to only utilizing one art element.