I don't want wonders that are bigger than the city, and I don't want Cities to be a group of three/four skyscrappers + palace if it's capital
You forgot Mediterranean for Civs like Venetians or Romans

But I am as much variety for as many architectural styles for cities and palaces as possible. And different models for units, too.
Palaces in Civ V are barely noticable, palaces in Civ VI are ridiculously oversized, like everything

But Civ VI has one problem against Civ V in architecture... While in both games, Brazil has Amerindian architectural style, in Civ VI, their palace is just ridiculous, it's something that looks like Maya/Aztec pyramid

(at least Civ V gave Brazil European music...)
Yes, but at least the graphics allow me to forget it's a map

I can't get the feeling in Civ VI (but I guess it's not just the graphics, by the fact that Civ VI world is designed to look like a map, with areas I discovered but can't see looking like their sketches on a map, undiscovered areas being paper with compases, monsters and ships on it, and the Southern/Northern edge of the world also looking like a map edges)