Okay I decided to add some background music here to fill in the awkward silence we usually have between exercise. Let me know if you'd rather have it without.
Here are some recommended resource for the topic:
Books:
- Color and Light by James Gurney
- Framed Perspective Vol. 2: Technical Drawing for Shadows, Volume, and Characters by Marcos Mateu-Mestre
Videos:
- Digital Painting by Sinix
- Beginner
- Intermediate