With this card I made the top fold too thin and it broke. So all I did is punched a hole in the center and tied ribbon and fibers to hold it together.It still turned out nice. I cut out the shadow part of the cage which is included in the svg file with acetate so can see through the cage.
http://www.4shared.com/file/o5qM9y53/JennMcQ-bird_cage_card.html