10:43 PM, Wednesday June 8th 2022
Yes, I practice drawing every weekday for 2 hours, and every weekend day for about 5 hours. I have done this since the start of 2020.
The main way I have practiced my line quality is by doing master studies of my favorite comic book pencillers, and really work on matching their line weight and strokes.
Also the rock studies themselves helped a lot. Doing a lot of this tight hatching, I had a lot more control near the end of the rock challenge than in the beginning.
I had nice handwriting before I started drawing, though. XD