Part 1
Actually there is no need to look too far. these are TW's own designs and aesthetically compatible armor sets. I took these few examples from tw's posted videos.
Here are some units with their sergeants
Palatine Archers
Legionary
This could be a nice spear unit for battania
Also, I would love to see the huskarl unit in the campaign.
Congratulations on other posts, really great visuals but it may take us a long time to see them in the game. My suggestion TW can please us in the short term with previous designs.
Part 2
1. I think the helmet here fits the empire very well
But then they changed color and now they look very bad compared to here (a dirty look) and a few more helmets shared the same fate. The helmets in question -high quality ones- can revert to the shiny appearance as before, the lower quality ones remain the same.
2. Slavic culture seems very dominant in Sturgia. I think it wouldn't be bad to slightly increase this in favor of viking. for example, how about a sturgian archer like this?
3. I would like to see more of these types of helmets at Kuzait. I think it will be a better reflection of the culture. For example horse archers can wear these
Finally TW's wallpapers. these armor sets look great.
Sorry for my english not my mother tongue