Dear all, I was on holliday so sorry for my late reply. Thanks for all the nice words.
Quoting Family Vuurzoon
Hallo Teddy, Amazing! It looks fantastic. How did you create the pillars in front? After Central Station in June & the Public Library in July I am looking forward to August ...(:>).
There is a tutorial on columns on lego.com. although I changed the design a bit to fill up the empty spase in the columns and interlock the tiles.