Interesting
I'm not going to claim you're untalented or that you traced that, because I can see that both are entirely untrue. I will say however, that you should try to make a tutorial that shows people how to draw these characters in their own unique positions, not ones from the original pictures. That would require a uniform base structure, like stick-figures and circles.
You may also want to look into facial styles for each character/artist, analyze how to do the eyes/nose/ears/hair, facial expressions, etc. Learning the face is almost half the effort in drawing a character.
Otherwise, nice tutorial. I hope this helps many beginners like I was back in the day find their own style.