I bought the book from this site and for now I've went back to concentrate on just the Sphere drawing. I've scanned the picture from the book along with one of my very very very bad attempts. Anytime I try to shade something it just comes out all grainy like this rather than the smooth shading I see in everyones pictures.
Any tips for a beginner as I'm just not sure how to do this smoothly and I'm starting to get frustrated at how bad it looks. Thanks in advance and please let me know if this was the wrong section to post this in.

Here are 2 more just so you can see what I mean about everything looking too 'grainy' when trying to shade objects....
