Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

You notice that we do have Zapruder and Sitzman in the far ground of this Willis frame.

So, let's look at them:

This is very blurry, but there is still some useful information. First: we see that Zapruder is in front of Sitzman. He's in front; she's behind. Second: we can see how tall she was. Third, we predominantly see the east face. The east face of the pedestal is facing us. The south face is practically tangental. This is definitely a mostly eastern view.

Now, Mary Moorman was directly across from Zapruder, so she was looking at him from south to north. What she should have seen was Zapruder in front of Sitzman. 

But instead, we're still getting a left/right orientation, where Zapruder seems to be leftward and Sitzman seems to be rightward. 

Why would Mary see that? This was her view:

But, Babushka Lady WAS farther east and enough so to pick up that left/right orientation of the two of them on the pedestal.