Tenchelyn,  yes, the thread could become quite interesting. Yet, I must go back to what was said in the first post:

"My goal is to give a list of (really) useful advices about composition and especially composition in glamour/portrait photography"

While the laws of composition would be great fodder for a thread, I suspect a tutorial of such would of necessity become a book.   A good tut in itself is a daunting task, and task enough.

There are many methods of teaching and of catching and maintaining interest in the subject. Of course, the end should be to enlighten, assist and improve the vision of the reader/student.

My method is simple: Illustrate everything possible with situations such as a photo shoot with which the reader may identify.   Bring the way you do it to them (to us) in a workable form we may try and utalise.

Aegipan, again best wishes on this task. I fully believe you will write and illustrate a tut we will find very useful and interesting.  To simply convey the method behind your eye and technique  will be enough for many.  I suspect much of your work now is the eye seeing composition as it does for your fine images.  Can you back up enough to see how your eye developed that view?  I personally look forward to the tutorial.  Your thought of planning, photo and tips should work well.

I believe the mods here will graciously review the tut in various stages and a few of the rest of us would be willing to do the same in a more private viewing.        Tom.