[wingnut1]

The one image I did so far kept the same resolution of 2692 x 3308 pixels. The file size decreased in the AFTER version from 5.36MB to 4.88MB, but that's to be expected as the original image file would have had more colour information with the various red tones and blotchiness (is that a proper word I wonder?). I'll try link to the image here so you get the idea;



As you can see, the smoother skin tones and more uniform colour would be the reasons for the lower file size. The original shot was taken with a Nikon D2X and 70-200VR lens. I didn't make any colour adjustments, the lady is a blusher!