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The religion of the Arabs needs to be changed slightly; it would be better to give the abstract God some kind of name. The Order of the Lord's Guardians should also be reworked, since the Elgariolians worship Light, not Jesus.
The ability of Wind-Player also needs a slight rework (I imagined him taking out 5 archangels with one shot); it would be better to make it so: apprentice targets 1 unit of level 1-4, advanced targets 2 units of level 1-4, expert targets 3 units of level 1-4 and 1 unit of level 5-6, master targets 4 units of level 1-4 and 2 units of level 5-6, grandmaster targets 5 units of level 1-4 and 3 units of level 5-6.
Also, for balance, the ability to shoot should be removed from hawks, and magic resistance should be removed from the heavenly messenger.
I've even come up with the soundtrack for the Arab city – "Wonderful Valley" by Mr. Credo!:D