Second, mix up a bevy of monochromatic colors in your palette.
Third, make sure they are not very dark (so add a decent amount of water).
Fourth, with your big brush, create a regular series of brush strokes (each one separate from the other(s)) across a single or double page spread.
Make sure to cover the entire space.
Do not put this on top of something else, and please do not draw on top of this until you are asked. This is a precursor to another activity later - which is why we don't want it to be that dark.
Fifth, if you have questions because you don't feel like the directions are clear, please ask.