leave the sketches on a table and a note saying how much you like them and would like to know which memory piece can teach you to draw like that.

The quiet in the head comes from integration (remembering consciously the abuse situations - Since the memories are no longer stored in the unconscious level they are not getting triggered into rerunning pell mell. ) Since the memories are a part of the conscious memory now you have access to the information that the memories contained just by thinking about that memory. Those voices you no longer hear are now like a normal memory instead of separated and unremembered in the unconscious level.