This was the first mesh I ever made so its not the greatest thing as far as details go, however its till a nice castle. I would recommend scaling it by a multiplier of 1.91 in the creation kit and that should make it the proper size.

New: 
-Round corner tower
-Door/window cap for tower
-stairway

Planned:
-Some more wall variations possibly
-Let me know what you guys would like to see added.