@Gargron I was thinking the same.

Four-leafed is rare. 3 lobes per leaf doesn't happen, because of the way the leaves grow. If it did, the veins would match the lobes, which they don't. Freezing doesn't magically make the flesh of the leaf disappear. If you take the flesh away, ice wouldn't naturally form in leaf shapes.

This is definitely artificial, though conceivably physically created then photographed.

@appassionato