I am a photographer (see my profile at 373593) and retoucher and am now offering my retouching experience to other photographers.
I do anything from putting in new backgrounds, eliminating unwanted items from an image, giving a portrait a magazine type make-over, removing unwanted weight, adding make-up, retouching old and damaged images etc. Unless specifically requested I retain texture in the skin and do not give it a plastic looking finish.
The cost will depend on how much work you would like done to your image, some things take just a few minutes others many hours depending on how involved it is. I would prefer to have a raw or un-edited file if possible and will require payment before I start work. During the retouching work I will liaise with you to ensure you are happy with the progress and it is what you have in mind. If you are a model wanting a picture of yourself retouched I require the photographer's or copyright holder's permission before I start work
See more examples on the retouching page of my website