Really interesting. Besides the fun technical limitation of these being vector- and mouse-made, I feel like such studies might also help with memorizing material rendering/surface behavior to reuse later when rendering concept sketches made from imagination. Cool stuff ...
@piorAlso didn't have a drawing tablet at the time, actually still don't but currently looking at XPen's Artist 12 for what I want to do plus within budget of what is affordable. As for using AD to sketch with, well once I became comfortable dealing with each layer - masked curve grouping and various output settings this…