Wow. Looks great, especially the second screenshot. Just in the two windows above the big door in the second screenshot there should be at least weak lightening. This because i think (cant test it) people would totally be non-visible. Correct me if im wrong.
For the first screenshot: Wouldnt players be hardly visible there in the shadows next to the castle? If thats a problem maybe a brighter green for the grass-texture would fix it?