Light weight concrete tree
While it's not a creative name; this piece of wall art is something everyone will comment on. With ever detail of this lateral tree slice, nobody will believe it's not a tree; let alone concrete.
It is available in any color but I greatly recommend either bright white for a stark, clean look for black for a shou sugi ban aesthetic.
Standing about 7' tall and 16" wide, the faux bois piece can lean against a wall or be hung with french cleat installed in the back. The piece weights about 60 lbs and comes crate shipped.