Line: they are marked by a pointed tool. brush, pencil, pen etc.. lines can vary in width, direction, curvature length or color.
Shape: they are formed when ends of continuous lines meet. they are geometric shapes like a square, triangle or circle.
Color: color wheels show primary colors, secondary colors, and tertiary colors. they show the relationships between complementary colors across from each other such as blue & orange.
Value: refers to the scale of black & white with all gradations.
Form: it describes objects that are three- dimensional having length, width & height
Texture: it can be rough, bumpy, slick, scratchy, smooth, silky, soft, prickly the list is endless.
Space: it refers to distance or areas around, between, or within components of a piece.
Balance: the comfortable or pleasing arrangements of things in art.
Contrast: using complementary colors or extremely light and dark values.
Emphasis: is the focal area of artwork gives it importance
Movement: it means the artist is taking viewers on a trip through the work by means of lines, edges, shapes and colors often leading to the focal area.
Pattern: they are patterns made in art when the same shape or elements are repeated again and again.
Rhythm: it's the repetition of shapes, lines & forms.
Unity: means that all elements in an artwork are in harmony. Unity brings together a composition with similar units.
