Hello! I haven't studied much about the Egyptian culture but I will give you what I can...
Even though they were influenced by Egypt, this country had its own culture. They still had strong rulers who were females. They also had their own way of making pyramid. here this might help you....
Even though they were influenced by Egypt, this country had its own culture. They still had strong rulers who were females. They also had their own way of making pyramids
and this to....
many controlled the army once they had conquered Egypt and the king Piankhy became Pharaoh and always provided the major portion of the army during a subsequent series of wars with Assyria for the control Syria.
They were a warrior society, so that's how their soldiers were organized and fought, whereas Egyptian soldiers were professional regulars, a standing army.
Egyptian military commanders were basically puppets, so there was some strain in the relationship between the part of the army and the essentially subject Egyptian contingent, as the always made sure they had the upper hand during the 90 years of ruling.
Hope this helped you some.