I've just seen this video and I must confess that this guy amazed me! He has a very very good vision of the perspective and draw very very fast. Also his accuracy and of details is just awesome. Hereafter what he specifies on his YouTube page about his creation:
And he looks pretty young on his FB Page: _https://www.facebook.com/photo.php?fbid=496912573688195&set=a.360735197305934.88078.360732723972848&type=1&theater
To answer some of your other questions regarding the details of the work:
The drawing is 48" (four feet) in diameter and thus 150" (12.5 feet) in circumference.
Drawing the piece and editing the still photographs took place over the course of two months with interruption. In all, some 3500 individual photos were taken.
And he looks pretty young on his FB Page: _https://www.facebook.com/photo.php?fbid=496912573688195&set=a.360735197305934.88078.360732723972848&type=1&theater