It really bothers me how many different patterns of shingles were used on the roofing sections. Makes me wonder if this was common in castles of similar era. This also happens with the rock patterns used on the walls. It almost suggests that the castle was built in sections or additions. It must be modeled after someone real otherwise it doesn't make much sense at all.
Would you be incorporating your differences into the textures of the castle, or are you just going to use the structural design? This may be helpful for players to determine which area/tower they are in based on different textures -- but would probably make the map look bad without carefully creating custom textures.
Do you plan on using two castles like your antioch series? or going for a siegecastle approach, or even a courtyard/inner-castle map like castle1?
I'll probably come up with some more questions.
