KV17 - the tomb (as far as we know ) was certainly a new innovation and still spectacular . The ceiling is a depiction of the night sky decans . et.
Ahhh ... I see, what inspired that particular PART OF the card's artwork .
There are a lot of changes , but I can see what you mean .
Somewhere in the ( Greco-Egyptian ) process, the lineal Egyptian Zodiac got converted / compared to the circular one - see Dendera Zodiac.
Either Crowley / Harris used this innovation, or it comes from another 'half way' process between the two historically , not that I know of one .
What is your source on this earthair ? Or did you just pick up the similarities yourself ?
It seems like a GD exercise - putting the asterisms on a sidereal Zodiac . But the card seems to have grouped them in asterisms while the lineal zodiac just shows them in number , have you done a comparison on each segment ?