The Romans are kind placeholder specially the helmet. Boudica is mostly represent equal. a Celtic girl with an armor. in composition I prefer Bust shot.
Diadochi mostly have Alexander placeholder helmets.
In Spanish is Mauria = Maurya
https://es.wikipedia.org/wiki/Imperio_Maurya
https://en.wikipedia.org/wiki/Maurya_Empire
But the demonym is Mauryan -an adding the suffix
I don't see the problem. "if they are violent is bad excuse" but E games aren't compared to a Olympic discipline.
I'm most to think the Olympic games must be train body and mind
With we finish with Classic Medieval facciones (Europe, Middle East , Indians and Far Asians)
We can add more American cultures.
https://en.wikipedia.org/wiki/Mississippian_culture