Please do not take my comments the wrong way. I was in no way inferring the Prof. had used underhand tactics to enhance the photo. I was just surprised at the difference in appearance of some areas between the two shots where I presumed the only difference was the presence of scenery or not. The photoshop comment was due mainly to the left hand side of the head of the second figure in which it appeared to be a little softer as though it had been cropped (not doctored) with a wand or similar.
Apologies for any misunderstanding my original post may have caused.