Civilization idea - Serbians

I'm back again with another civ! Oh boi!
This time it's gonna be the Serbians. They are the happy neighbours of the Byzantines and had close ties with them.

Without further ado here's their technology tree and more.

>>> [Serbians](https://imgur.com/a/xgBoymD) <<<

Overview:

The Serbians are a cavalry civilization. Despite lacking Paladin, their Light Cavalry is very strong and have access to camels & all techs. Their infantry is decent lacking only Champion. The archery Range is lackluster missing the final armor upgrade, Arbalests and Hand Cannonneers, but their cavalry archers are still decent. The siege weapons are average without Siege Rams and Siege Onagers. Their navy is average missing Fast Fire Ships, Shipwright and Elite Cannon Galleons. Their monks are good missing only Herbal Medicine and Block Printing. For defenses it's great, only missing the Bombard Tower. They get the unique building The Smederevo Fortress which is a stronger version of a castle, but at a higher cost. Economy is decent, especially their mining is really strong when fully upgraded.