Number 10 is a total disaster.  I tried using a mixture of marble dust, gesso and water to make a primer that was supposed to be similiar to wallis paper.  It wasn’t.  I will have to find out what the correct formula is.  I had a really hard time getting the pastel to even go onto the paper.  At some point, I added some liquitex clear acrylic gesso.  It has some grit to it.  Then I added more pastel, once dry of course.  I just peeled the gesso off as I tried to apply more pastel.  Just a total disaster.  But it was still fun.  Great learning experience.