This is proving to be a fun and relatively quick way to work.
The sketchbook work on which this is based is from a course I'm doing with Linda and Laura Kemshall, and naturally shares their techniques and some of their ideas!
Without giving too much away, Laura recently used a water soluble wax crayon to add definition to a sketchbook page involving crosses - similar to the ones you see on my page. I've translated this into the fabric techniques you see below, so in fairness I must acknowledge Laura's contribution to the look!!