creation

How to generate those amazing typography composition

I've been searching and searching how you can create such kind of composition.
The graphic designer Jocelyn Cottencin made those beautiful typography.
I know that for other font he has created he uses a pattern that he transform in scatter brush via illustrator.
I guess he uses this technique in an other way that I can't figure out.
If you guys can share your guesses or solutions, It will be incredible!
Hope you enjoy his work like me...

Links
http://www.jocelyncottencin.com/index.php