This is my first ever project, or rather the first one I have ever successfully uploaded to the internet.
I used mcedit and creative mode to build the entire castle.
It has tons of small houses/rooms for villagers, lots of open space, plenty of light, and plenty of gorgeous aesthetics.
It also has four redstone powered portcullises, one on each side. To open these portcullises press whatever button is to your left; regardless of whichever side you are going through or whether you are entering or exiting.
One problem, around the edge of it, about eleven or so blocks from the edge of the moat its rather obvious that it was mcedited into the world. You need to make the transition cleaner next time you build a project.