Are those rounds we see on the walls.. those kind of bars you find in concrete?
Pretty half-assed terrain. Lacks smaller bricks.
Don't know what kind of style you was aiming for though. Basic style also can look great, but I would myself had used more plates and smaller bricks. For the walls and such. More splinters and trash lying on the ground etc. Even though, the amount of details are dependent on how large the build will be. If this is the complete build, more details would be nice. But that's just me.
Concerning the sandbags. (or whatever they're called) Does that mean this is some sort of military establishment?
Looks great anyhow.