Regarding the isolated pocket of buildings; unless you (or those residents) have a reason for wanting to keep them isolated I would still consider giving them a road, maybe just a half-sized one (or less, as you want to convey the impression of 'seldom used'). There is a place in the NE where a road would not be required to go over the hill, or maybe a switchback road over the hill, or one following the eastern side of the river. Among other, very minor nit-picks, your river seems to be twice as broad along the southern edge as it was just upstream. This is explainable, of course (perhaps that pond is also spring fed, or the river becomes shallower), but at this scale river tapering isn't necessary. This would be less noticeable if the width of your river/stream were just a bit varied. The addition of a cultivated field or three might serve as a pleasant break from your vast expanses of green (if you can find some conveniantly flat land). To that end you may also consider foresting your steep hills. As I mentioned previously, all minor nit-picks. A nice map over-all.