Project: Invisible Cities - Dome Practise

I thought my domes were looking a bit plain so I thought I'd spruce them up a bit with some metal railing designs added on top. I took most of my inspiration from The Eden Project. I researched into it and sometimes they tend to light the domes from the inside at night. As part of the city description, it says that they light coloured lamps at night, so I though I'd add the domes into the mixture, as a way of making them more interesting.