Wow thats dedication to your dreams. Clearly a helicopte was the way to go. A plane would have moved too fast. A hot air balloon might not a flown over the right spot. And climbing a tree is just lame and probably not allowed.
It is really neat to see a photo of a panda from this angle. Did you get any other Treetops Cafe photos of other animals?
No, the panda exhibit is really the only thing you can see from up there. (Too many trees to see anything else, but of course having lots of trees in a zoo is a good thing).