Final answer:
The principle of hair design that brings all elements together is unity. Unity is essential for the cohesiveness and overall success of a hairstyle, relating to the harmonious arrangement of all design elements.
Step-by-step explanation:
The principle of hair design that holds all the elements of design together is unity. Unity in hair design refers to the overall cohesiveness of the design, ensuring that each component works together in harmony to create a single, coherent look. This principle is paramount in determining the visual impact and success of a hairstyle.
Understanding the principles of design is crucial as these function as the guidelines for combining the various elements in a way that produces a pleasing and effective composition. Similar to the way chemistry combines elements to form compounds, the principles dictate how different art elements such as texture, form, space, shape, color, and line come together in a visual arrangement.
In hair design, like in other art forms, these principles help create balance, movement, rhythm, and emphasis, with unity tying them all together seamlessly. It is the combination and interaction of these principles that give a hair design its compelling aesthetics and functional utility.