I like that cities can specialise on level up. Good move!

Two problems:

a ) I can't tell which city I'm looking at, as the dialogue box covers the city!

b ) Why is it so descriptively bland? Instead of 'Gold/research/spell production +20%' it should be

'Paridar becomes a city of...

1) Commerce (+20% gold production...)

2 ) Magic (+20% etc.)

3 ) Study

You could add this to the city description, maybe even give the city a subtext to its name. Immersion is important, and you're missing easy ways to do it!