I stumbled across Draw with Jazza's Youtube channel today, and found a lot of helpful videos. Jazza talks enthusiastically and really encourages you to have a go. I feel inspired to create new art again! It's been quite a while since I last created art regularly, and I'd really love to improve my skills. I feel my colour pencil art skills are pretty basic, with mostly just shading in flat areas of colour. Here is a great colour pencil shading tutorial from Draw with Jazza.
For more about Draw with Jazza and what he does, check his great website.