That piece is definitely supreme.
The issue I see though is that you get the finished piece, but do you get all the resources? Like the PSD file and a contractual agreement that you own full rights?
Because a physical art piece IS EVERYTHING (and all great art has certification and even an administrative body of authority that can verify authenticity).
The physical art was also the resources and also what represents time invested by the artist.
So as you've pointed out.
A reproduction has no ability to stand as equal.
Digital art doesn't have that unique individuality if you're only relying on trust. Sure trust works when people respect it. But say you and artist have a falling out. What stops that artist from deciding you don't deserve to be sole owner anymore? The artwork should utilize a smart contract at the very least.