I personally can't overemphasis how interesting and fun drawing with the scribble technique is. It gives me so much freedom to a point where I can manipulate even my already designed thoughts easily.
The sketch above is a random face I decided to play around with and luckily for me, in the process of the study I got to learn of the strength that are in the act of not completing the faces I sketch.
It was just mere acts before but now I think I've got more reasons to be deliberate with the manner at which vanish my strokes in the edges of my drawings.
126.391 SRY