I have found a French guy on youtube who has some nice tutorials. He also sounds very French, which makes it more arty.
Here is his video on shading:
I am still often struggling with basics like drawing a cube freehand, but despite this I feel that I have more confidence with drawing overall. For the first time I feel like the tutorials make sense and are useful and not totally beyond me.
There are different ways to shade, not just lines.
Dots and scribbles and little marks and twirly bits.
The key thing is to make the mark following the line of whatever you are drawing.
So curved along the edge of the ball, for example.
I've been practising this some more today:
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| Balls! |