I like the map, but also agree it can use improvement. The main points for me:
-bigger distinction between FOW and unexplored terrain. I've had cases where I look at my map and can't tell what I've explored and what I haven't.
-as everyone else said, bigger hills. To add on, bigger resources too. I mean obviously I keep resource icons on, but it would be nice to also be able to clearly see a horse or pig in the background, as opposed to this tiny object that is impossible to determine.
-Keep the resource icons for resources under cities/districts! I got the tech for oil, and it's basically impossible to know where they are! There might be one hiding under a neighbour's district and I wouldn't be able to tell at all.
But yeah, would be nice to have more obvious hills at the very least.