I swear, the most difficult pat this process is removing the masquing compound from the painting! You really get a workout. Then you have to be a tactile detective by rubbing your fingers all over the piece looking for stray bits of the stuff. When you remove the masque (frisk it) from your painting, the surface of the paper does not seem to absorb paint quite the same way. the intention here is not to over work the piece, but leave the painterly qualities intact and visible.
I am posting this from my iPad, not a very user friendly thing to do. Also, the photos were taken with it as well, thinner they are over exposed and showing too light. Once I return home, I will post the WIP steps with photos taken with my camera.