I will also have to agree with Geek and Dev and Space.
The courtyard is empty. Try more details? Maybe some village houses, blacksmith, stable, barracks, etc.
The towers are all the same. Try making them rounder in shape with the top part wider. The actual castle itself was dissapointing as there were no windows. You didn't even take pics of the inside
As for the bridge. It was completely unnecesary as it lead to absolutely nothing. Try making more buildings on other parts of the map.
The mine looked unrealistic. Macroed. Making the walls different would make it look better. Try also making it next to a mountain for added effect. Also, I noticed that the sign said Mine #1 implying that you are going to, or planned on making more than one. Also, you didn't take pics of the mine interior either
Keep on trying though. :)
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