I'm looking through old jumping pictures from when I was about 13 years old.. and I found a particularly scary one. This was a rescue mare who's 16.3 ish and was very aggressive when she came to the barn. After a lot of retraining, she is currently a wonderful mare to ride, but back then.. she could be a little.. erm.. forward about jumping.
Those are 5' standards.. In the video still, at the angle it was taken it looked like she'd cleared the barn! Haha
Granted, she was quite terrifying.. But poor pony! Had to put up with my equitation! XD