Wow, looks really great! My vote would be for c), looks better I think.

The forests are on a bit thick though in certain parts that are rather heavily inhabited, the two western continents for example are more sparsely wooded, the region around Yojei is also generally grass and farm land (one of the most populous regions in the world), and the land around Kohakta is also relatively dense in terms of population.

Otherwise though, the map is pretty much perfect, and I can't thank you enough for doing this for me! I don't have much written down, but I've recently finished the first chapter for the story that takes place in that world, so if you're interested in reading it let me know, it's the least I could do.