I shot this image looking down on a river from a bridge. I used a tripod and a long exposure of 3 seconds. This was photographed in Northern Wisconsin.
To emphasize the texture of the rocks in contrast with the smooth water, I processed the image as a black and white. You notice textures more when your eyes don't have to be distracted with color.
Want to take a more interesting photograph? Look for contrasting subjects. Here the smooth water and the rugged rocks provide just that.