It could use some improvement.
I'd suggest some background music. It's not a necessity, but it can spice up an originally bland Flash tutorial. The actual tutorial itself was kinda short, and there were a bunch of noteworthy issues that you could have covered in this tutorial.
For example, light sources. You could've went into more detail when you wrote, "mess around with it until you're satisfied with the results." Inconsistent light sources could be a problem with the shading. Novices who are inexperienced with shading constantly make this mistake.
It was helpful, though, to a certain extent, and there were some nifty suggestions such as using the 'Glow' filter as an assistance to shading.
Overall, a decent tutorial that needs to be a tiny bit more in-depth. Keep up the good work, I guess. 3/5