Nice graphics but bad organization and bad grammar
Whilst the graphics in the spinning 3D cubes and other nice little effects was nice, it didn't save the tutorial from all of the poor grammar and sentince structure.
This tutorial was hard to read. Sentinces had dangling modifiers, plural verbs were used in place of singular ones. Although I'm not senselessly strict about small grammar mistakes, the grammar errors here inhibited effective understanding of the text.
So, when making a tutorial. Remember to proof-read your writing so its understandible. Good luck in the future.