That... looks utterly awesome, thanks!
A few more ideas perhaps here;
Pelayo; the first leader of the reconquista.
(http://www.medieval-spain.com/historia/Reino%20de%20Asturias/102_0250Don%20Pelayo%20CangasBC.JPG)
The Commagene and Gorin Empires both have quite a Byzantine feel, so maybe a bit of Byzantine art;
(http://www.byzantinearts.com/byzantine-icons/saint_dimitrios.jpg)
Religion is another developing feature, including a great schism between the Calradic Orinite church and the southern Varalite church.
Large image of a monk drinking;
Spoiler: click to toggle
(http://upload.wikimedia.org/wikipedia/commons/d/d3/Monk_sneaking_a_drink.jpg)
And for an Orinite monk preaching the crusade this would be awesome;
(http://www.hermitary.com/images/dore_ph.jpg)