Como fazer LUZ E SOMBRA num desenho?

[+INFO] BOOKS & LINKS TO STUDY DRAWING: MY PINTEREST FOLDER:   / drawing-tutorials   "Color and Light" by James Gurney: https://amzn.to/2GZvBiH "Figure Drawing: For all it's worth" by Andrew Loomis: https://amzn.to/2BgIfGj "Drawing and sketching Portraits" by Jacquelyn Descanso: https://amzn.to/2WAQm9A "Shading Techniques: A Shading Guide for Teachers and Students": https://amzn.to/2U6hKdK "How to Shade: A Beginner's Guide to Shading Techniques, Including Step By Step Exercises, Tips & Tricks": https://amzn.to/2TXHOrx Videotutorial: "Shading Light and Shape" From Proko:    • Shading Light and Form - Basics   Video tutorial: "How to Shade a Drawing" by Proko    • How to Shade a Drawing  : Attention: By purchasing any product from Amazon through my links, you contribute to the channel's revenue and help us grow ;) ------------------ Materials used: Canson Layout 120g paper for the sketch Pentel 0.7mm mechanical pencil 6B pencil (for shading) Blending stump Mono Zero eraser and kneaded eraser ---------------- ▪Online Courses▪ Learn without leaving home: https://www.marycagnin.com/cursos INTRODUCTION TO WATERCOLOR: https://marycagnin.com/cursos/introdu... WATERCOLOR PORTRAIT: https://marycagnin.com/cursos/retrato... BOTANICAL WATERCOLOR: https://marycagnin.com/cursos/aquarel... DIGITAL ILLUSTRATION: https://marycagnin.com/cursos/ilustra... ▪Just Mary Podcast▪ Spotify: https://open.spotify.com/show/2qa0AoB... Other platforms: https://anchor.fm/marycagnin ▪Social Media▪ WEBSITE: http://www.marycagnin.com ONLINE STORE: http://www.marycagninstore.com/ INSTAGRAM: Instagram:   / marycagnin   PINTEREST:   / marycagnin   READ MY COMICS: http://www.marycagnin.com/publicacoes ▪Mailing Address▪ Mariana Cagnin - P.O. BOX: 81794 | ZIP CODE 02430-971 | São Paulo/SP Business contact: [email protected]