Origami Dragon

This is a Dragon.The difficult ***

This can be made in about 20 minutes.If anything, it is easy.
I want to up-load a difficult dragon next day.

No cut and a square.17cm*17cm.
Reference book : Honkaku Origami

--20130131 update--
If you feel that you want to fold this dragon,
please read this book review.
I introduce the book that have diagram of the dragon.