Notable observations: Just noticed the wedge-shaped circles, representing the flower, is also underneath the step pyramid on the wall painting—along with the arrow pointing up hybridized with the door inside the step pyramid.
Sources:
https://collections.louvre.fr/en/ark:/53355/cl010170854
https://commons.wikimedia.org/wiki/File:Kef_Kalesi_Säulenelement_01.jpg
by Responsible_Ideal879