I like how the castle is coming along so far, and nice use of the curved bricks. I'm glad to see that someone else uses them. As for the city part, it looks alright, but it reminds me more of a ghetto than a castle town. It almost seems to modern. Try mixing stone-like bricks for the building foundations with wood-like bricks for the upper parts. Keep working at it and I'm sure you can make it look great.