They could have used things like trees, people, animals, mountains, etc as a reference/starting point for their work.
The answer would have to be C. because its about a variety of colors.
I think that you should start off with your most favorite colors. then, do a quote that inspires you. and try to do a abstract painting.
for example: "live and love loudly, share it and don't forget to dream big." that is the quote i go by and it inspires me.
T because i really think its the answer i am not really sure but im going for it....
