What I noticed:
I immediately recognised the meaning in the scribble and what final “drawing” I wanted to make out of it.
What Would I have needed more:
Definitely a guiding voice instead of reading myself the instructions
Relaxing music in the foreground (it could be added as a suggestion)
Indication to have a large paper with you (I did it with an A4 and would have loved to have a bigger paper)
Indications of timings (for me, about 15 min)