Undetailed. It must have taken 25min. to make it done probably. There're some grass tiles which are there just because save the map from empty outlook. I think this is your bereft side that you don't try to use the tileset thoroughly.
@ kerker: I'm talking about the bright spots (env_light entities) on the map in the dark areas. They look weird because you can't see any physical light sources there. Adding flare sprites or something like that would help.