Or look at art with shading.

Try to kind of copy it.

All artist learned it by lots of practice and copying others.

I hope This helped :).

Learning how to shade is a long (annoying) process, that you are never really finished with. I learned how to shade by trying new techniques, looking at tutorials, and other art. My shading is a blend of a lot of artists, and a lot of different techniques. It has also taken me a very long time to be able to shade decently. X3 I can make a tutorial for you if you like? I enjoy helping others. <3 If you do, just say so. <3

I also have some recorded drawings uploaded to youtube, but they are not sped up, and are painfully slow. XD

It's better to open your own help topic instead of hijacking I someone else's. :)

Your question is very vague, and hard to answer. Could you be a bit more specific?

For your crediting question- if you made the art with no references, or all of the references you own, then yes. You only need to put "©Night Owl" either on the avatar itself, or in your bio/notes. If putting it in your bio/notes, I suggest writing why you put the copyright, as it might be a bit confusing. x3