here are my thoughts so far! Now I will try criticize your and such but will give you feedback:
1. i know this is a beta version and all that but you need new banners for all factions ( i know it takes a long time to make them )
2. wales does not need the byzantine colors and banners
3. is it possible to add the holy roman empire during this time?
4. can i use geomod tool for this mod?
5. all units colors looks odd to me... idk if this is intended or not
6. the coast line needs to be more polished bc i have problems doing that in my patch that I am creating
7. you could possibly add the burgundians as part of the mod bc they existed until after 13th century
8. more diverse and variety of units would make each faction stand out
9. banners needs to be more polished
other than that so far so good! if you need help with importing units and such there's a tutorial here:
https://www.twcenter.net/forums/show...r-new-factions,
https://www.twcenter.net/forums/show...unit-into-game,
https://www.twcenter.net/forums/show...nother-faction