Rushing water,colorful rocks can create a very nice composition.You must wait until very late in the evening for the lighting to warm up and bring out the color in the rocks. I have gotten exceptional results when the sun has disappeared below the horizon.In the photo I have placed rocks in the foreground and framed the running water with rocks to give the photo depth. This photo was shot at 75mm with the settings of 4.0 sec @ f29. This allows for great depth of field.
Water takes on a life of its own when you have the right evening conditions.The sky is clear and the sunlight is filtering through the trees, illuminating the reddish rocks in this particular photo.The reddish coloration will then turn the water into a reddish hue. The lighting is also very soft. It is almost dark when this occurs so you have to quickly set up your shot or lose it.The photo was captured at 28 mm with settings of 1 sec @ f22.The rocks in the background are also highlighted into a nice warm glow giving the photo added depth. The water goes from a reddish tone in the background to a more copper tone in the foreground.
Ken Bennison's Photography 