As we alter the camera viewpoint around a subject the direction of the light also alters and the resulting photographs can be quite different.

Here we see an image of four small boats in the foreground backlit from behind and to the left. Notice how the scene presents more of a silhouette - look at the texture in the water.

Here we see the same four boats photographed from a position where the light falls directly on them. Look at the rhythm the four shapes set up on the ground.

Remember when we move the camera to a different location, objects in the foreground become relatively larger in comparison to other visual elements in the scene. So we use camera position to emphasize elements we want to have more visual importance in the image.

Here we clearly see the cracks in the mud.

However, when we move the camera position to the top of the dam wall the texture of the crazing in the mud become indistinguishable, while the texture in top of the stone wall comes forward. Look how we also lose a sense of the height of the dam and the slope down towards the water.

Here the large boulder in the foreground relates to the line of smaller boulders in the background.

In this image the camera viewpoint is much lower - a lager area of sky is evident for the boulder to sit against.

Here the camera position has been rotated 180° and relates the boulders to the headland in the background.