This lovely diorama by flickr user Burning Brick has lots of great little details to pore over. While the lattice work windows in the front tower may not do much to aid the tower’s ability to withstand a siege, they are certainly picturesque. And the knobbly tree in front is quite imaginative, and is an excellent departure from the sort of trees we usually see in LEGO form.
I really love the roof on that central tower. It’s difficult to make clean joins on an octagonal spire but those barbs and spires do an excellent job of camoflaging the problematic construction.