looking good so far.
some minor suggestions
the smaller details, like the grass decals, and cracks should be done later on.
Really focus on the big picture stuff. your already doing that, just dont spend that much time on decals
watch out for the black lines in the air canisters. if you need some more shadow info, play around with your AO bake. and try colour correcting that.
Keep the overall saturation low on all ur diffs. Its easier to bump them up down the road.
Also, it seems your going for an Indian street scene ? right ?
What are the core elements that make up a Indian street scene ? and which of those elements are you going to add to really sell these scene. Cause right now i could only tell its a market environment, and looking at the Indian text on some the objects, that this is an Indian street.