This easy background is a simple way to use up leftover papers.
I used a dark brown background card. The papers were cut at an angle....just somewhat randomly, an then stuck them side by side with a little gap between.
Then the layers were sliced vertically and reassembled, alternating top and bottom, and leaving a similar sized gap.
I've used "outback" colours with a bit of copper shimmer to lift it, but I think if you used a black base and primaries you'd get a very sixties look which could be fun.