Element of Design;

shape;

Shapes are flat and can express length and width, Shapes can also show perspective by overlapping, this shape overlaps because it has shapes on top of shapes, example the triangles over the diamond.
Shape is a closed line. Shapes can be geometric, this shape is a closed line and it is geometric

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Line;

Line is the basic element that refers to the continuous movement of a point along a surface, this is a bunch of lines that connect at one point. In this picture the lines are longer than they are thick. Lines can be horizontal, vertical or diagonal, straight or curved, thick or thin, they are all of those.

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Form;

 3D shapes, this is a 3d shape, and the different shades and shadows show that. It is also shown by different and enhanced tones.

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Space;

 Space is the area between and around objects, the object is the trees, and the area is its surrounding. Space includes the background, foreground and middle ground. Space refers to the distances or areas around, between or within components of a piece. There are two type of space: positive and negative space. Positive space refers to the space of a shape representing the subject matter. Negative space refers to the space around and between the subject matter.

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Color;

Color is light reflected off objects. Color has three main characteristics: hue or its name (red, green, blue, etc.), value (how light or dark it is), and intensity (how bright or dull it is). 

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Texture;

Texture is perceived surface quality. In art, there are two types of texture: tactile and implied. Tactile texture (real texture) is the way the surface of an object actual feels.  This texture is rough, you can tell and see on the bark.

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