Una mappa delle bandiere dei comuni dello Stato federale tedesco della Renania Settentrionale-Vestfalia [OC]

I drew this map of North Rhine-Westphalia by hand on A3 paper.
There are 396 municipal subdivisions, including cities, and as such, the map took a good while to be finished.
With long breaks this took me roughly two and a half weeks.

I hope you enjoy my artwork^^

Quite impressive