The one with dark lines was before I watched the demo, and I focused there on anything but exploration and sketching. The one with lighter lines I drew after watching the demo. I think I gravitate towards making one perfect line for some reason. I've also found that using a smaller brush size works better in this exercise, as multiple wider lines kind of merge into one, so the exploration is less visible. Drawing with low opacity allows drawing more lines without committing to any in particular, so it's easier to sketch this way. I noticed that having the right canvas-size-to-brush-size ratio is essential to getting these sketches right.

Damn, these laces. Drawn before demo and critiques. I tried drawing snail and boots 3 times, but skull and camel is a first try(and within one hour!). Lesson learnt: a zoom is an enemy!

Digital Art. Portrait and pears