21-22: fold the corners up, creating something like a preliminary base. 23: fold corners in creating something like a kite base 24: unfold loose layers behind 25:crease, connecting the bottom parts of the two pointy things 26:something like a reverse fold 27:a petal fold/squash fold
just so you know, thats illigal if you don't own the book and against the forum rules. I'm just telling you before one of the mods catches you, they are very strict on that rule
it is not against the rules to post portions of the diagrams, though. he probably owns the book and downloaded a pdf version to post the pictures of it.