I speeded up the time to double, so it may not be as easy to see, but i made occotional pauses, which were caused when i had to check if the Camera hasn't moved out of sight, and other times where i was concidering how to draw something... -This happens because i don't have the drawing in my head, i'm just improvising, and starting right away... There's no such things as help lines to indicate the head position, or placement of eyes and such (i dislike those, and prefer to predict where to draw instead)
I kinda feel like visiting youtube, and checking how OTHER people draw manga... to see if more professional people use some nice useful technique..!