I really loved this tuto, and simple but effective approach to learn how the work with values and basic forms such as squares, triangles , and spheres. This is a really good way to practice and getting more confident in shading and working with values.
I've tried to think 3D and also tried to leave some few brushstrokes cause i've done it not only with some soft brushes. The blending of the tones took me more time but it's a good way to improve.
Every comments and critiques is welcome cause i'm here to learn. :-)
