Many photographers try to work on an idea of an image through multiple takes. This is most often seen in landscape photographs, where an identical scene and framing can bring completely different effects depending on the light, time of year and atmospheric conditions.
Sometimes, the use of a different focal length can be beneficial. Here is a photograph I have retaken at a distance of a couple of weeks. Both photos are shot on 35mm camera. The first one with a 50mm lens:
The second one, with a 85mm lens:
At times, it is difficult to decide, which one works better.