when material defines the form

I often ask myself, when does an experiment become a work of art?
In the eye of the beholder I guess.
There is a growing collection of wood in my yard, from logs to branches, complete root balls excavated by a generous friend, interesting finds from specialist stockists, driftwood off the beach and salvaged furniture parts.
Settling in my world from all parts of the world.
Here are two pieces which have inadvertently become one. My dear brother with an exceptional eye for grouping objects beautifully, took these pictures for me in my studio.
Both pieces are based from a burl from a kind of Australian gum tree. One cups a relic held high, balancing delicately on a driftwood branch as if left there by the tide. The other revolves around like a moon, or circumambulates as a pilgrim might around the remains of their master.
The spiralling and complex grain of the burls with a startlingly contrasting bark have patterns like exploding stars. And very hard and heavy to handle!
I guess I should come up with a title for the composition… but not yet.