A great photo is about balance. Balance of the light. Balance of the color. Balance of the subjects. In this case it's also about physical balance as well as all those other things. It takes incredible strength and balance to even do a short slackline. That's a long way to hold your balance. Sometimes I won't even walk the three blocks to the corner store near my apartment and that doesn't even take any special skill. That's just walking. If I had to walk that three blocks on slack line then I'd never have my flaming hot Cheetos.
If you're not too terrified of heights you could try to take a picture like this. It just might take a couple years of slackline training and a plane ticket to Ecuador. I could do the plane ticket to Ecuador, but I'll pass on any of the slacklining.