The map density changed a lot, and Pocuttia now looks awesome Thanks!
But there is some minor problems
About cultures, idk what would your culture approach would be, such granular cultures would require Southern Rus to be separated from Northern Rus culture group to represent a major differences between them.
I strongly suggest rename Halychian to Red Ruthenian because not only this culture expands furthen than actual Halychyna but its timeframe wrong.
Also still existing Rusyn culture have no sense. because people on both sides of Carphatians are still pretty homogenic, the divide only would begin to appear after Brest union in 1596 because Halychyna adopted greek-catholicism and Subcaphatia would remain orthodox till this day.
I suggest, as others also said to expand this culture a bit southern to Northern Bykovyna. At least as a minority. Bykovyna itself was for a long time integral part of Galicia (Latin name of Halychyna) Princedom and later Kingdom.
"In 1334, the prince's charter mentions the "faithful nobleman" Oleksandr Moldavovich, who at that time ruled in Russo-Wallachia, so the influence of the princely court did not let the Moldavian land out of orbit, so there was bound to be a conflict with the Hungarians over those lands."
So just in the years of game. Parts of Moldova are listed as Russo-Vlachia
And about countries
Bare minimum is to rename Halychia. Its super bad. Its like calling Suffolk - Sufok or Westphalia - Westphaln
Just call it Halychyna (region name) of Halych, because of Princedom of Halych, thats it.
About borders. We ofthen lack well made maps but we have text sources. Northern lands of Galicia-Volhynia that i drew were part of Volhynia Princedom up until at least 1342 "at the beginning, this territory was probably occupied by Masovian princes, because for 1342 the sources mention the Masovian governor in Dorogychyna, Jan Dobrogostowic"
So only after death of last Galicia-Vohlynia ruler in 1340.
There is also minor correction to make Turov-Pinsk bigger.
I cant confirm Podolian land ownership at that time to anyone. But creation of Podolian Duchy was a result of wars for succesion of Galicia-Vohlynia, so I presume this lands were vassals of Galicia-Vohlynia and should be depicted as such, not as an integral part of country.
Again Russo-Wallachia also need partial recognition on the map.
Thanks for your work!!