The background I made about 9 months ago. I used cardboard, several pieces of large drawing paper taped together, and oil pastels. It took me about 6 hours, I wanted to take my time with it. I enjoy it being unique and colorful, even though I really like the look of a solid black painted background.
You probally saw it on Monsterfishkeepers.com.
Or Theoscartank.com I am a moderator there helping people with their oscars.
I love this site! Everyone is very friendly here! :D