Just screens of the 8 different castles designed for Phillip.
The best thing to say about this construction: The concept of completing it by moat and a freestanding gate works really well.
Castles 4 and 8 display a bug. One of the stables is repeatedly built and deleted causing Phillip to loose 200 gold in the process. The simple reason is that any access there is blocked by either a hovel (Ph4) or connected weapons workshops (Ph8). - Compare Wolf 2 for a similar problem.
Another mistake occurs in castle 6. It lacks an armoury (but there is one armourer's workshop too much). So the weapons workshops are set to sleep, the towers are not manned and spearmen are trained rather few. (Compare Emir 3 for the same problem.)