Now that looks like fun both to do and watch! Nice light coming through the forest trees - I like how it illuminates the tightrope walker. This is such a unique and unusual shot that you should show it off to it's fullest. I think if you crop closer to make your main subject fill the frame a bit more it would have greater visual impact. If you crop out about 1/3 off the right and about 1/6 off the top & bottom you would get a tighter composition where the tightrope walker fills more of the composition showing off the action that is happening here.
So - you are on the other end of this line - does that mean that you crossed it too?? - Just to get this great shot?? What dedication to your craft :)!!!