Color line index that identifies the city where I was born

In 2009, I used the distilling color expression method for my MA course research at Arts University Bournemouth.In this poster competition, I adopted the same expression method, distilling color element from the pictures of my hometown picked up from Instagram with # tag of hometown randomly.
It does not show clear information, it might be difficult to identify what it is without explanations. However, I strongly imagine that abstracted visual information boosts the imagination of people. Additionally, it might be easier and clearer to compare the objects.