Final answer:
The artwork uses principles of unity and variety to create a cohesive yet visually interesting composition, with different shades of blue providing unity and various shapes introducing variety.
Step-by-step explanation:
The artwork in question demonstrates the use of various principles of art, specifically unity and variety. Unity in art conveys a sense of cohesiveness and completeness that is aesthetically pleasing to the viewer. It is achieved when all parts of the composition fit together harmoniously. Variety introduces differences that make the art piece more interesting and helps to maintain the viewer's attention by providing contrast within the unity. In the case of the artwork made up of different shapes in shades of blue, the unity principle is reflected in the use of various shades within a single color family, creating a cohesive feel. To add variety, the artist might incorporate different shapes and textures, ensuring that the artwork maintains a level of visual interest.
The artist utilizes the color blue in different shades to create both unity and variety, making the artwork visually cohesive while also containing elements that stand out and catch the eye. This approach can be likened to how a musical orchestra combines a variety of instruments to create a unified symphony.