I am not on this forum very much anymore but randomly popped in. I know the girl whose bow you posted a picture of, as she used to be in my bow group (The BowChicks). She (like me) uses a cardboard template, which is a great way to get consistency with your bows, and they are virtually free! For an example, I would use Charlie's Halo's tutorial from The Ribbon Retreat's page. And practice, practice, practice! Hope that helps!
here is a link to the tut: http://www.theribbonretreat.com/blog...make-bows.html