Marbled Paper

I've been experimenting with colored backgrounds. I made these marbled papers in my bathtub using Luma concentrated watercolors. I wanted to make sure the ability of the paper to take charcoal or watercolor wouldn't be affected by an oil based dye. It also allows me to lay watercolors on top. I have to work a little more aggressively to make the image work with the busy background, but the effect can be striking when it works.