My post was about Islamic art in their architecture. IMHO, far more architectural works labeled ‘Islamic’, were previously Christian or Jewish architectures before they were seized by Muslims. E.g. the Temple Mount.
Alhambra, though followed the reverse trend. If one studies Alhambra they can learn to identify some trends attributable to that religion, distinct from others.
We agree. :) The whole Koran is the Bible turned up-side-down.