Currently working on a village I started from scratch. I have added a castle, a harbor, and a Colosseum, with the regular village buildings. Thinking about things such as aqueducts, or I don't know, just having a "writers block". If you need pictures I can provide. This is more of a medieval style rather than modern. I am average at redstone as well. If you have any questions just ask, and thank you for the help!
EDIT: Also I play vanilla, so no mods. There is a jungle somewhat close, currently in a forest biome built on a sea.
Aqueduct of some sort
Bank of some sort
Add to harbor
jk, but do a Big Townsquare surrounded by houses, usually gets quite nice
Certainly in future plans. My harbor area has items laying about like sideways logs and watermelons and such as if it were a trading post, so ships and stuff can have these items rolled onto them. Also after watching Captain Sparklez latest Chronotide, I figured a cemetery sounds good as well.
EDIT: Kind of have a town square, where my main belltower is, but certainly could have a better one as the city expands.