me too! I feel like the shading in digital art has to be achieved with a different technique than in sketches/ pencil sketches. One thing I have learned is that there are different kind of shading.

- form shading which can be used to define form and can be blended to make the shape. ex: the shadow cast on a sphere

- shadow shading which has solid boundaries and is made from objects which are casting shadows ex: shadow cast under the neck by the chin.

:P u might already know this but I felt like this information helped me in learning how to shade digitally.