These elements represent lines because you can clearly see the lines in these pictures.
Shapes are formed wherever the ends of a continuous line meet. Geometric shapes such as circles, triangles or squares have perfect, uniform measurements and don't often appear in nature. Organic shapes are associated with things from the natural world, like plants and animals.
Color wheels show the primary colors, secondary colors, and the tertiary (intermediate) colors. They also show the relationships between complementary colors across from each other, such as blue and orange; and analogous (similar or related) colors next to each other such as yellow, green, and blue. Black and white may be thought of as colors but, in fact, they are not. White light is the presence of all color; black is the absence of reflected light and therefore the absence of color.
Value (Tone) or tone, refers to dark and light; the value scale refers to black and white with all gradations of gray in between. Value contrasts help us to see and understand a two-dimensional work of art.
Texture can be rough, bumpy, slick, scratchy, smooth, silky, soft, prickly--the list is endless. Texture refers to the surface quality, both simulated and actual, of artwork.
Space refers to distances or areas around, between, or within components of a piece. Space can be positive (white or light) or negative (black or dark), open or closed,shallow or deep, and two-dimensional or three-dimensional.
Balance is the comfortable or pleasing arrangement of things in art. There are three different types of balance: symmetrical, asymmetrical, and radial. The human figure is symmetrically balanced; the same on the left and right side. The tree is asymmetrically balanced; its branches are not distributed equally on each side, but their total weight is balanced left and right. The sun is an example of radial balance; all its rays are equal in length from the center.
Balance is the comfortable or pleasing arrangement of things in art. There are three different types of balance: symmetrical, asymmetrical, and radial. The human figure is symmetrically balanced; the same on the left and right side. The tree is asymmetrically balanced; its branches are not distributed equally on each side, but their total weight is balanced left and right. The sun is an example of radial balance; all its rays are equal in length from the center.
Emphasis in the focal area of an artwork gives it importance. An artist may stress some elements of the design over others. The eye of the viewer will focus on the area of emphasis or center of interest first, then take in the rest of the composition.