I have been itching to do a sketch of Jorge Rendón Alverdi for years now and my first attempt also coincided with my first real use of the Procreate app for the iPad. I think I understand what all the fuss is about. This app allows me to spin the drawings in all directions (instead of the iPad itself!) to make my little hatches.
I wanted to achieve looseness and I did exactly the opposite. I got obsessive. I might have to start the whole thing over. Not so much to produce a drawing, but to practice loosening up, and letting the pen (or stylus, as it were) decide where it's all going.