I guess it's too late now to change (but as long as you are happy with it, that is all that matters), but the main thing that stands out on the map to me is that so many elements (houses and orchards) are aligned in the same direction (N/S) which seems a little unnatural.

I love the texture you're using for the roofs - the buildings themselves look great. The ground looks a little monotone in comparison. Have a look at the Genetica free textures. There's a tiling grass texture there called 'Just add bison' which might go really well with this map, although you'd probably have to lay something else on top of it to give it more variation. Likewise with the roads, perhaps a couple of textures overlaid on top with a cloud layer mask to muddy them up some.

Hope this helps!