The Zentangle on the left was made on grey paper I stained as I couldn't find any in my stash at the time. I was inspired by this video at YouTube.
The page on the right I ues a tecknique I adapted from another. I painted whole page grey and dried then painted whole page with Martha Stewart Pearl Pink paint. I then used a comb from Martha's tools to make the background. The designs on the page were die cuts I made. some of which were with paper I dyed myself.