I unraveled the burlap and handstitched this to a piece of felt. Without unraveling it, the burlap would not have been 'transparent' enough to my liking.
It is beginning to look more interesting, but it needs a bit more. Using thin foam I cut out irregular oval shapes, placed these on top of the burlap and spread mixed concrete in it. This was put away till the next day. After the foam was removed, the journal quilt looks like this: