There's this, though I've had issues with this mod for a long time, both for the current version and the older ones. Loading the terrain map in-game and running it for a while often causes crashes, for me at least, but if you just want to admire your kingdom/empire/freehold in beautiful green glory, this is your mod.topic12428.html
Ninja, would there be any conflicts in the base mod or sub-mod if I changed the size of the castles/cities in Valyria? I agree with Valyria-proper being maximum size, and maybe the areas immediately around it, or on the "Valyrian Isles," but the Lands of Always Summer and the provinces around it feel like they should have less... scale.
Also, I have a recommendation for the next version of this when you next update it, whenever that would be. Along with scaling the settlements to biggest in Valyria, big in the surrounding provinces, and less big in the sprawl of it, it would be great to see provinces filled with more settlements once colonized, perhaps with tier 2-4 level castles/cities, so that they're more similar to other city provinces, like King's Landing, Oldtown, the Free the Ghiscari cities, etc. That way Old Valyria can have way more vassals and lords/patricians, however that's supposed to happen, and stay in line with the other cities of the mod. That said, if there's more holdings off the bat, the holdings as a whole need to be reduced a bit, since at the moment someone can just blitzkrieg-colonize and pretty easily get a ridiculous army in only a few years.