How did you do that? Make a down load link, I mean. I have been trying to figure it out, but can't seem to. Also, taking a leisurely stroll around your castle. When I think of something, you'll be the first to know.
Alright, first off, remove the bed. Next, make the walls higher. Then the actual castle itself. Make the walls and castle wider and longer as well. Add tnt cannons to the wall. Make the bridge a piston bridge attached to a lever, and make the bridge itself longer. Attached to a lever, you can then manage who's coming and going by pushing the lever up and down. Make more rooms, like bedroom, enchanting room, and the like. Make a training ground outside of the castle, but inside the walls. You will notice a LOT more people on your server.