Pretty good
That was pretty well done, the explanation was brilliant, but, i have noticed a few problems.
Usually when someone makes a tutorial/guide then he or she must be very good at what he or she is teaching. In your case, this is drawing anime. When drawing a head you must leave room for the forehead, and you drew the eyes way too high.
Im just saying before you go make a tutorial, make sure you know what your doing AND that your extremely good at it. Anyhow i really think you put alot of effort into it, well done.