Nice map, maybe a bit bright for a night sky.
The stonewal texture is hard to align, I'll post a few screenshots.
The barrels are to wide/The top and bottom textures aren't scaled up


Red: I'd add a clip brush here.

Red: I'd add clip brushes here, too.

Red: Move this faces a little bit.

Red: I'd add a clip brush here.

Red: I'd move this faces a little bit, that you don't split a stone.

Red: Move these faces a little bit.

Red: Hmm...difficult to align with this texture. But some faces could be aligned better imo.

Red: Move these faces a little bit, too.

Red: Move these faces a little bit, too.

Red: Move these faces a little bit, too.

Red: I'd make the fence brush so, you can shoot but not walk through. Would be more realistic.
All in all a good job. I think the alignments and other improvements can be done easily.
Map is online @ [OTB] Beta!