6. During the time that the object is in front of the Moon, before the raised area starts into view over the object's top or northern horizon, I suppose, the object's surface has been "rolling," towards you just the way you would expect a large sphere to do and "look." Now the Moon is completely obscured. Up to this point the object's surface "tilting effect," towards the viewer, has not happened yet. After the raised area has started to into view and then rolls forward beyond or past it's top or highest position the tilting effect has started or will start very shortly. The way the surface seems to stop rolling and instead looks like a flat area tilting over at you is the point when the valley is seen to the right. The object's surface tilting towards you effect instead of the object's surface rolling at you effect signals the beginning of the valley, phase one of the illusion.
7. Even with a small telescope your viewing position is very up close to the massive boulder. My view start