The paper is Aqvarelle Arches, Cold Pressed, 100 % Cotton (140 lb).
The base is simply Crayola crayons (96 pack)
The wash (overlay) is black gesso.
I like using the Arches paper in watercolor block. I find that I have less leakage onto the other pages when using a block. Also, I believe that the paper stays flatter and dries more evenly.
The crayons are a little waxier than some of the bases that I have used. Therefore, your crayons will not spread as easily as some of the other bases. You will find that you have to press harder and almost crosshatch for good coverage.
I like the way that the black gesso evens out the finish and mutes all of the colors.