This map is pretty complicated. It will probably me take a few more days to finish it up - but hopefully the final effect will be pretty cool. As you remember, the map pack is connected with the previous one with the network of elevators on surface, transporting you down here to the underground city.
The underground area itself is split between what is lying directly under domes on the surface - more luxury and ordered areas and more poorly build slums / entertainment areas. From more glaring stuff - I will need to crank the lights down a bit because at the moment it looks too disco - and work on "wall" hexes.