It's an affordable alternative to items like the Wood/Metal Wall Shelves sold by Living Spaces in a set of three for $120.

“The wood tone nicely complements my ‘organic modern’ aesthetic.” Think outside the lines with the Umbra Montage wall shelf, a curvy design that comes in black, walnut, and natural colorway ...

A selection of artfully-cut trim wood pieces ... your DIY floating shelf. Metal or glass shelves, for example, could provide some visual variance from your accent wall panels.