Here is an example of what processing can do to a photo. Here is the photo straight out of the camera on the left, and processed with coffee colorants on the right. The processing makes all the difference. It can change the look and the mood of a photo. Soften it, color it differently, sharpen it... all kinds of things!
Same photo as yesterday, HDR processing. See, this is a perfect example of how different processing effects can change the entire mood of a photo. I don't quite like the moire looking balloons in this shot with this processing - but still an example of what can be done if the client wants it!