Buenos dias o tardes; -¿Tiene alguna referencia sobre esa tribu?   Disculpen las molestias*

https://youtube.com/shorts/EgSxyI49LIo?is=cqU1X0wC-WCWE_cW I agree the fifth would be a stretch

Yeah with detailed textures the issue is bigger. im fixing the UV map of the target using the checker but since its not the same mesh.    

I agree with your choices. There are other interesting characters like Shahrbaraz and Bahram V but I think the 5 you chose are the best options.  Ardashir I should have a bonus related to civic centers and temples. Shapur I should have a military bonus, maybe something for the cavalry. Shapur II "the Great" should have a bonus related to fortresses and towers. Khosrow I "the Just" should have a bonus in training speed from barracks and stables.  Khosrow II should have a capture bonus or a territory bonus. 

I'd be fine working on that instead, what were you thinking? Just a basic civ that someone would look through themselves, or like more like a tutorial?