Ok i will start by saying that your castle is nicely bordered (There's no exit - nice idea). It's also divided into sections, which make the castle tidy. I liked the zoo, the fountain, the huge towers and other things. The castle is functional and easy playable. Still you need to add even a short story and maybe some more interesting stuff (I found the castle in your invasion Duce de Chevaliers really great) I would suggest to update your map a little with the aspects written above.
You designed a nice castle, and worked a lot with it. Good job..