that looks great man, I really like the buildings in the center there. nice level of detail/textures on them. right now the forground texture is really dark in comparison to everything else and reads like asphalt, I would push it more towards a water stained concrete. having some reflective puddle decals could also help…
Hmm.. Your normal maps on the floor read like leather and lacks material definition. Your boxes look like a mix of wood and concrete. I'd work on your spec maps and toning down your normal map..
Aaaaaaaand my little sculpt that was meant to be just a quick little thing is now a finished prop instead. Well, the world can't get enuf of concrete barriers! Next up is a AK47, a Box and the old SD art test :P