The sail captured me at first, it's gorgeous, but many other details make this a superior MOC. All those tiles really do a great job giving it a nice and clean feel. And the idea for the light posts by the door are terrific!
This looks really great! I love the brick-built sail and the castle has some nice details. My one suggestion is try to add some details to the landscape, but I can understand a lack of pieces when trying to do that. Great job!