52 Inspirations 2017 - No 7 by Vicki Stegall
http://www.oscraps.com/shop/52-Inspirations-2017-no-7.html
52 Inspirations 2017 - No 8 by Vicki Stegall
http://www.oscraps.com/shop/52-Inspirations-2017-no-8.html

I used paper 1a on top of paper 3, (from 52 Inspirations-2017 - No 8 by Vicki Stegall) then used the Difference blend mode on paper 1a to get the dramatic background paper I was aiming for.