Types of shading that can be used in drawing by GeorgeXVII on DeviantArt

Back to Basics: Shading Basic Shapes by sjea on deviantART

3.Geometric Shapes and Shading 2013 by Dolyn-D on DeviantArt

How to Draw a Realistic Eye - by RAM by robertmarzullo on DeviantArt

Eye See Love by giglebox on DeviantArt

Shading and Hatching examples by TJThrilla on DeviantArt

MLP shading notes by Baron-Engel on DeviantArt

How to draw a box by devpose on DeviantArt

Hair shading tutorial -My way by blackstorm on DeviantArt

Traditional Art Tutorials on DeviantArt by jane-beata on DeviantArt

Shading Techniques by MiFoElie on DeviantArt