ahahahaha it's easy to beat them all since there are not many city assets out there! At the moment I feel a bit overwhelmed by all the stuff I need to add, so I'm going step by step being conscious that some aspects of the city are still absent!
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Yeah, I'm trying to hold any suggestions for now, first to let you cover the stuff you feel is the most important.
I'd say japanese assets from GuttyKreum are very good and robust, but those are made in too much detail for my 16x16 pixel world XD He has modern city called Clean City, but it doesn't mesh that great with your artstyle and doesn't have goodies like door animations that you put in your project. There was one more good 16x16 city I found, but I can't recall the name now... Anyway, they were both not exactly what I was looking for, but your city asset is slowly becoming exactly that :D