A good example of standard color profile created by the JPEG processing can be seen in this original image.
While not bad for a straight Jpeg file I wasn't happy with how flat the color is throughout the entire composition. (This is an example of the need for setting the white balance in the field).
In the below image, I've adjusted the overall white balance to feel warmer. This correction alone helps separate the foreground subjects from the house in the background. Additionally tweaking the curves to add a little contrast and pull out some of the details helps to sharpen some of the features in the skin tones.