There’s a funny amount of beef around using it in art, you have Anish Kapoor who bought exclusive rights to use Vantablack artistically and man of the people Stuart Semple offering his versions Black 1.0, 2.0, 3.0, 4.0 getting ever blacker.
Anyone could have made at least the same with the given material, and a more talented artist could stun, but sadly they are not allowed to because contract.