Framing

Framing what is it and how can I use it? I think of it as a element that adds definition and focus to your photograph. The example below is of a landscape I took recently and I used the metal fence to pull your eye into the picture.

In the next picture I used the tree and the branches to draw ones attention to the pasture and scenery beyond. Note the darkness of the tree and its branches in the foreground highlight the colors in the picture.

In the picture of the leaf and it's shadow the leaf is framed by the line in the concrete and the change of texture and color in the background. The shadow cast by the leaf adds interest and depth to the picture.