First I researched what the brand is about. 
What are the keywords related to it as it sounds and positioned in the minds of the customers
or how we want to position it.

Then I thought of what are the colors related to the keywords. And then decide on a concept idea.
I throw the waste that I can store.
So I bring all those materials at the installation location and start aligning them according to the concept and simultaneously a little bit randomly as well.