Cover your page with White Gesso.
Rip, or cut strips from a glossy magazine. Choose colors that suit your purpose, mood or other. Be Aware, that images will be covered in Gesso later.
Crumble up the strips. More than once. The folds will make interesting patterens later.
Unfold and glue strips on to page.
Dot Gesso at random on to images.
Now use the old credit card to smooth out the Gesso dots. Go in all directions, but leave one or two small bits un touched.
Get your Neo Colors out (or other water soluable crayons) And colour both the white areas and the crumbled papers. Wet with brush, and repeat as many times as you like, until you are happy with the result.