Some of the piles look like they might be somewhat stable - not very, but at least they might stay up for long enough to take the photograph. But some of them are ridiculous. The one right in the middle doesn't look as if it could stand for longer than a second or two, if at all. And the foreground one right next to it in the picture actually looks photoshopped - the pile doesn't appear to be on the rock that's supposed to be the base.