hi Marc, nice start. One thing you should concider is your shadows, heigher building should cast longer shadows, so your towers and the big complex should have theirs changed. In addition to that the pool shouldn't have a shadow since it goes into the ground. The roads should align with the openings, and some of the roads aren't totally straight.
You have a lot of entries to the complex, if it is also a fortification there probably would be only one or to entry points and towers would be on the corners to keep people from "hiding" there, the stair going up is huge, and there probably should be more than one.
I don't know what the green areas are, but if they are one three, then its to big, if it is several threes you should maybe break it up a litte to show us, and if its a park it would probably be more square looking at the other designs of the area
Looking forward to see how this progresses