Vertical Line This picture is an example of vertical lines because it has lines that run up and down. These lines create a feeling of strength, dignity, formality, loftiness, assurance, height, and emphasis. Horizontal Line This picture is an example of horizontal lines because it contains lines that follow the horizon. These lines create a feeling of restful, quiet, peace, relaxing, sturdy, informal especially if they are long. Diagonal Line This is picture is an example of diagonal lines because the lines are at a slope. It suggests direction, movement, activity, and energy. Curved Line This picture is an example of curved lines because the curves can be many sizes ranging from large to small. It creates a feeling of playful, graceful, and feminine. The small curves create playfulness and humor.