I like cottonwood bark. Here is one sample that fits its piece of wood nicely. One feature that comes off well is the carved rocks at the base which then draw the eye into the uncarved bark that begins to to look rock-ish.
This piece would go best on a mantle or shelf where it could be turned so that the stairs and arches along the right side would show most. Which gets your attention more, rocks or stairs?
“Whoever loves discipline loves knowledge, but whoever hates correction is stupid.” Prov 12:1