AS15-86-11603 (11603) is, as far as I have found, the Apollo scam photo with the most errors--a hodgepodge of errors.
I wrote an article for AULIS on this very photo:
http://www.aulis.com/photostudy.htm
11603 also contains clear evidence of tampering to coverup a revealing mistake.
First, like many other Apollo photos, the rover in 11603 seems to lay no tread or tracks in the soft soil. The red and blue circles in the image below highlight where tracks should be, but aren't
In the following zoom I highlight just a few of the strange and inconsistent shadows in 11603. The blue circle shows the "not's right leg shadow converging in the space of about 1 meter with the tire's shadow. They should not converge at all.
The yellow circle highlights the "not's left leg shadow falling up and to the left instead of down and to the left as it should. The red circle shows the reflection of the artificial light source used to fill in the scene. More about that later.
The following zoom shows what many others have said of 11603: It is a good example of the use of fill lighting to get an effect that would be imposable if the sun were the only source of light. In the red circles the "not's suit is well lit in the front. This is impossible if the sun, as indicated, is on his back.
The blue circles are over the rover's port wheels. Those wheels are are on the non sun lit side, and in shadow. They should be nearly lost in blackness, but are instead illuminated enough that some of their details are discernible.
More evidence of the fill light used to illuminate this scenes is shown in the image below. Notice in the blue circle two reflections of the fill light used to illuminate this scene. Both reflections face upward and toward the left of the camera. Neither reflection in the blue circle can be reflected surface light, or light reflected from the bags on the back of the rover.
Now things take an interesting turn, as the rover's bed/frame is not casting a shadow consistent with others shadows in 11603. There should be a shadow of the rover's bed underneath of it. There is not, as can be seen in 11603, and in the blue circle of the zoom below.
Seems that the shadow of the SEP pallet to the center right of 11603 took a command from Shakespeare's Macbeth, "Come like shadows, so depart!," and departed.
Of note is just the pure lack of a shadow from the SEP pallet, and the impossible light falling on the bar in the yellow circle. Notice that the that the blue circled mound of soil does cast a shadow. It should instead be engulfed in the SEP pallet's shadow. Just redonkulous.
And now the tampering bit of the presentation. If one accepts that a fill light is being used in 11603, and that it is to the right rear of the camera, then one would expect that light to be reflected in the "not's visor. Why is it not? Zooming in provides an answer: 11603 has had a crude masking applied over the 'not's visor.
Below, the red arrow points to the right angle of the masking on the right of the 'not's helmet and visor. Notice how the masking covers over part of the right side rim of the 'not's helmet. With further zoom, a right angled corner formed by the masking is visible out away from the helmet, and against the background.
In addition to the right angle formed by the masking on the 'not's right (red arrow), an edge running along the top of the masking is visible against the top of the visor (yellow arrow), and another right angle is seen on the left of the visor (green arrow).
My Photoshop skills are limited, so get a copy of 11603 from NASA yourself, and then zoom in for a better look at the masking over the visor.
"NASA! You got some splainin to do!"
An American citizen, not US subject.