Exactly mate , except i would have only Gone 5 ring Cities . The second ring of tiles around the Capital will hold the Satellite Cities districts(and occasion wonder )) and the third Ring will hold the tile improvements.
Its gonna look glorious!!...... 95% of the reason i want to do this is for Aethestic's. I just think it would look really cool, That and my current Civ5 game has a city location
that would perfect for it.
If you manage to achieve this when the game is out, I'd love to see a screenshot of it