This artist is brave. And ingenious. I mean really. What would make you think about balancing your work on a tightrope 50ft in the sky!? CRAZY!! Plus they are part of the Kinetica Art Fair here in the UK!
I found the images here and I honestly don't know if they are hers or someone else's. But here is the link to the artist Jerzy Kedziora, the creator of these wonderful sculptures.
P.S right now I am sat on a plane flying to Vancouver! Eeek!