i think using original tileset would make it harder to present it as modern era
your map was kindda dull (sorry, trully) , its just too empty
if there are ppl living there, it need variety of things (as different ppl do different things) , and every house should have different kinds of look (dont make all the same)
the ground/grass is too well tended , if its modern there should be stone tile or just make variety of different tile so ppl who look at it wont get bored of seeing the same things
sorry if i offended you
there are good/great tileset out there for modern place , i got it from someone in this forum and i forgot where it is (japanese website)
dunno if it would help, example of my modern map (feels empty cuz cant put event in the picture)