Color

Depth of Field
 The only picture that there is really depth of field in is the picture of the leaf. I took this picture in super macro mode. So there appears to be depth of field in the picture.

Exposure
 For exposure I shoot all my pictures underexposed. I think my pictures look better when they are shot underexposed. I think when the pictures are a little darker the detail comes out a little better.

Lighting
 Again, with lighting I try and keep my picture a little darker. I think it looks better overall. And the detail is a little better, and more noticeable. For all of these pictures, it was natural lighting from the sun. And it was kind of a dark day so there wasn't much light anyway.

Lines
 For each picture it has its own lines. For each picture there are different lines, and had to be shot differently. I changed each picture before I shot it, so that it would look better.

Color/Value
 Each picture has its own color value. Depending on what picture I shot I changed how I was shooting it. Some pictures need more of something to look better. For instance, the picture of the leaf has really nice color with mostly red, but also has a little green in it as well.

Composition
 This is a mixture of everything I talked about. Between lines and color. Or lighting and exposure. Everything works together to give you the best picture possible picture.