Final answer:
A variety of textures in art is significant as it adds visual interest, depth, and emotional impact to a composition, enhancing the viewer's engagement through contrasts in touch.
Step-by-step explanation:
A variety of textures is important in art because it helps to create visual interest and depth in a composition. Including different textures in artwork engages the sense of touch, even if only visually, and can evoke different emotions and reactions from the viewer. Textures can differ in smoothness, roughness, softness, and hardness, and they work to complement and contrast each other, which can enhance the overall aesthetic experience.
For example, in painting, an artist might use a palette knife to create thick, impasto textures for a rustic scene, while using smooth glazes for calm water. In sculpture, contrasts between polished and rough surfaces can guide the viewer's eyes through the piece and highlight form and detail. Hence, texture variation is essential in the creative process and for the visual and emotional impact of the art piece.