The white will definitely be removed later on.

That style of farmland looks very nice! I think I'll do something like that.

I should probably explain my vision a bit more. I'm planning to replace all the scanned-in elements with computer drawn equivalents (not quite as sketchy) and will try to get a parchment background. The farmland, river and forest-areas (that are only scattered pines now) will get a bit of colouring, though I'm not sure exactly what look I'm aiming for there yet. Some of the forest areas will also be denser than they are now.