I have over 5 years experience re-touching many photos for high-end fashion shoots. Good photography is only part of an excellent result for any fashion campaign. The art direction, the styling, the printing stock are also other important aspects of having a good result. So too is the re-touching. I have seen photographers attempts at re-touching their own photos but its only through experience and studio requirements to meet the design at hand that the true re-touching results can be found and achieved. All hail photoshop.