Sandman. Well if this was an artist that added in the flares I have to give them credit for attention to detail in the shadows.
They would have had to take an extreme amount of time to place some of the shadows like they did. A few areas stand out. One of them being the intakes, channels between the intakes that lead down to the main fuselage, targeting pod shadow, nav pod shadows, JDAM and centerline shadows, shadows on the left CFTs GBU-12s, the right CFTs lower GBU-12 aft fin assembly, left CFT lower rack mounts, left CFT rubber seal, both external tanks shadows, and last but not least the light going between the tank/pylon radiating onto the flap and aileron assembly.
If this is infact an artist they did an awesome job. It does look like their may have been some imperfections in the photo but not so bad that it stands out as a fake. On the forward part of the left CFT in front of the 492nd patch there is a green area. This could have been someone scanning the photo. Any mishandling could have left oils on the film in that area and discolored it. That could also be what is causing some of the blurring forward and below the navigation pod.