Closed Form This picture of a little girl sitting is closed form because you can see her whole body.
Open Form This picture of a persons eyeball is open form because it is zoomed in to one part of the specific capture.
Scale This picture of the road getting smaller is an example of scale. The road get smaller as it move back into space. Closer objects overlap it in the background.
linear Perspective This picture is a example of linear perspective because it recedes to a perspective point on the horizon line.
Atmospheric Perspective This picture is a example of atmospheric perspective because objects in the background have cool colors and are hazy. Objects in the foreground have warm colors, more contrast and sharper details.
Lighting This picture is a example of lighting because it shows highlights to emphasize your focal point. Areas that are highlighted appear to come out at the viewer, areas that are in shadow appear to recede.
Texture This picture is a example of texture because it defines the surface of an object. Textures can differ in the way they reflect light.