Elements of Art/Design
One really needs to understand the elements of art to understand the impact that a certain element can create. For example diagonal lines appear undecided, unstable, busy, active, dynamic, restless, dramatic, sporty, lengthening, and reduce horizontal or vertical shapes. Often a diagonal line needs opposing diagonal to appear balanced. I have also attached a pdf file on the same. Hope this article helps you.
You can also read this (Elements of Design in FASHION) to understand elements of design in fashion design.
ELEMENTS OF ART
Now every one knows what a line is. The path which connects two points. Lines can be straight, vertical, horizontal, curve, zig-zag, angular etc.
Shape is a 2-d area. The shape can be geometric, abstract, organic etc.
It is nothing but the 3-D projection of the shape. Like shape, form can also be geometric or organic.
Value is the lightness or darkness and may refer to the way colour is used.
Understand the colour wheel. Understanding of warm, cool and neutral colours and their usage.
Roughness or smoothness of a surface.
Positive Space is created by objects that are seen as a main element appearing to be in front of the background.
Negative Space is the area that surrounds the shapes.
DOWNLOAD THE ATTACHMENT: PDF FILE ON ELEMENTS OF DESIGN