Not really sure what part of the developmental process it's supposed to represent, but it's sure is different. A very cool vid (he has a ton of them)
https://m.youtube.com/watch?v=IP8eJ0tSQz4
Even in Italian, the tying sequence is easy to follow.
hook - Dai Riki 125 #12
thread - Danville 6/0 olive
body - mylar medium opal
underwing - partridge
wing - deer hair
head - dubbing olive
Regards,
Scott