principles of light and shadow?
- observe and draw from life (tho these days there are also 3d models)
- turn any image into grayscale only, so you can focus on Values and not colours
basics are covered here
https://www.jennyluillustration.com/post/5-essential-light-and-shadow-types-that-every-artist-should-know
if you’re looking to do specific shading execution in pen and ink, then https://alphonsodunn.com had a lot of resources
5 Essential Light and Shadow Types that Every Artist Should Know
By Jenny Lu | 24 March 2021“Learn the rules like a pro, so you can break them like an artist.” -Pablo PicassoWhen you step into an art classroom, the first thing an art teacher will tell you to do is probably draw a still life setup. Still-life drawing is the foundation of art. But you can hardly make any good still life without a solid understanding of the Five-Value System.Today we will introduce you to the five essential light and shadow types that will benefit your artistic journey tremendou
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