Thanks! Here is more she posted from that page …
Take a look at the shattered helmet … more photos are in this link.
And her takeaway …
The photos show that it doesn’t seem to be a rotational fall by the horse. It could have been, but looks as if he came right back up from his nose almost on the ground, rather than tipping over.
Based on these photos, more of a level 10 peck. Horse didn’t fall, but that high back-end with a buried front-end just dumped the rider right out of the saddle. It’s almost impossible for anyone to stay on with a front end that low when the back end is that high, with momentum. Lucky outcome, could have been far worse.