By the way, I noticed that Toynbee and the Venerable Bade still publishes masterpieces like "The Happiest Nations Of the World" and things like that. Unless you want to remove it, you could always change the names from Toynbee and those guys to the names of some of the Istari (Radagast, Saruman, Gandalf) or the valar (Manwë, Ulmo, Aulë, Oromë, Mandos, Lórien, Tulkas, Varda, Yavanna,
Nienna, Estë, Vairë, Vána and Nessa) or the maiar (Melian, Olórin/Gandalf, Ilmarë, Eönwë, Ossë and Uinen). Just a thought.
Also, the ordinary advisors takes away some of the excellent Tolkien vibes you've created in the mod; maybe you could get more drawings from wherever they came from of the advisors. I'm aware that the advisors need to be the same for all the civs, but I'm sure that whoever made the leader-drawings is skilled enough to be able to make kinda neutral looking advisors.
That's all the feedback for now, keep on truckin'!