You can count on every image printed (now-a-days) being photoshopped in some way or other. Just a tweak here or an adjustment there. I'm not saying the the content is always changed but I am saying that the images are manipulated to print or appear as desired by the art staff. This includes contrast, brightness levels, cropping, sharpness and so on.
To me, the thing that makes this image look "fake" is the color saturation (or oversaturation) of the suits. Oversaturation messes up the shadows and kills a lot of detail...thus making things look un-natural. Do I think the suits were drawn or otherwise "created" in photoshop...probably not. Adjusted in photoshop...certainly.