Your job is AWESOME. I mean really, it looks neat.
in my personal opinion: I think you should try different style for thinks that were made “because it couldn’t be done better”. For example acid pool road with it’s rough edges looked neat in original but with this advance in graphics it looks silly (although again, awesome job) so for the sake of keeping yourself faithfull for aestetics you might consider revising those edges or redesigning road altogether.
Same goes for: steps, lamps beside exit door, exit switch, fance near exit.
again, this is ONLY my opinion and those notes was possible to make because everything else looks so “in place”. Keep going.