Well, Galician here, happy to see that many locations in Galicia! However, couple of suggestions in our Atlantic corner of the Map:
-Wouldn't it be better to be a bit more consistent with naming conventions for locations? For example, if you're using Ourense for the name of the province (which I prefer since it is the proper Galician name), you shouldn't call the location Orense. In the same way, Villalba should be Vilalba and Viana del Bollo/Viana do Bolo. Ginzo de Limia, Tuy and Monterrey could stay that way since they were written like that sometimes in medieval times, but we Galicians now write those names as Xinzo de Limia, Tui and Monterrei. Otherwise, pretty good job with the locations and the naming all 7 medieval Galician provinces in 4 provinces.
-On the topic of vegetation, Monforte de Lemos should probably be considered farmlands, since its valley was one of the most fertile places of Galicia back then. Besides, even though we're quite hilly and there is a whole lot of woods here, you should probably add some extra grasslands in some locations. Vilalba and Lugo would be my best bets in that regard. Santiago could be hills as well as flatlands, though.
-There should probably be some Galician pops in Ponferrada, Villafranca del Bierzo and Puebla de Sanabria, since those locations were still a part of Galicia until the XV century and many people still speak Galician there even nowadays. Hell, I would even consider grouping those 3 locations as a distinct province from Leon altogether and call them Bierzo to represent an intermediate state between purely Galician territory and purely Leonese territory. But at least representing that those locations had a mix of Astur-Leonese and Galician speakers is a must with the great job you've done with all those locations!
-When it comes to raw goods, you've made an excelent job representing what resources we Galician produced and use back then. Congratulations, you've even added a tin producing province (those were quite important here, and there is even a proper Galician word noun to describe the profession of those that worked exclusively with tin: picheleiros). However, I must point out that we also worked iron here, specially around Lugo and Santiago, in pretty significant quantities as well. As a matter of fact, there are many names of places, squares, etc. That refer to the guilds working with iron, such as the praza da ferreiria in Pontevedra. Imo, at least one province in Galicia should have iron as a raw good, but that is only my opinion (5/10 recommendation). HOWEVER, WE SHOULD REALLY PRODUCE WINE SOMEWHERE (10/10). Galicia is a region of many different and widely acclaimed wines, after all, and our wine production really skyrocketed during the timeframe of Project Caesar. Thus, I think that at least one, and maybe even two or three locations should produce wine as a raw good. Fine candidates would be Monforte (to represent the Ribeira Sacra) Ourense (for the same reason) and Pontevedra (to represent the fine wines of the Rias Baixas). Stone should also definitely be produced somewhere (8/10 recommendation). All in all, Galician urban architecture relied heavily on stone, and we have been great granite producers at least since three centuries ago. Tuy would be a great province to represent this (granito d'O Porriño, no less).
Sorry if I've overdone my feedback. But seeing such a detailed map has really got me going. I can provide some sources if you will, but that would be my Galician feedback for the moment. Great maps and happy Dia das Letras Galegas (it is one of our national days here in Galicia and it is today)!