Sharing: You are allowed to print this, to use this chart to show anyone who need to know where they are on practice level. As long as it’s non-commercial.
+ Benefit of copying: It forces you to get rid of your usual habits and learn to adapt something new, and learn the observation skill of the artist at higher level than you.
People in the past has used copying to practice, it’s not a crime.
It’s an important skill to level up in!
Think of it this way, when you are at level 99, and you still draw manga/anime/cartoon, you can really tell people “This is my style and I choose to be this way!” because you can also do all other styles and prove them wrong!