Prozac, I advice you to try some diffrent styles or atleast try to avoid going into the direction you are currently heading. Fortifications are nice but they look horrible with most of the graal tiles, try using 'building bricks' (Used for normal houses)
There are a few examples of fortifications that worked out alright, try checking Doomsday (if its still on Dev) it has 2 or 3 fortified cities that looked nice (as far as I remember)
It also wouldn't hurt to try doing something with wooden poles, no straight lines but maby a shattered fortification?
As far as I can judge your flooring, straight lines can be nice aslong as you don't use "small" repetative paterns/tiles. Than it will just look very easy/cheesy and horrible. You might try to do a mix between grass/stone pathways for the inside of a city.
PS: Castle "tile" fortifications can be nice but they aren't extremly sexy in the way your using them. The top part looks nice (except for the flooring in it) but the "wall" is just horrible.
Good luck
