There were 2 chunks of textured paper glued on my watercolor paper before I started. I used Mod Podge for glue. I expected the concentration of pigment in the paper collage areas. I glued the paper before I knew what I was painting. Lesson learned😜 know where the collage will effect the pigment concentration. Preferably not in the sky which created a hairy texture! It worked wonderfully along the shore bank line, excentuating grasses.