I don't trust this for one bit. For the owners there is quite the incentive to label this as the work of a genius. But in reality, this is just pretty complex for a 12 year-old to produce by yourself.

Edit: as others have pointed out, and if I were to actually read the article carefully before commenting, the composition is not attributed to Michelangelo. So it is just a copy. Quite the achievement, but possible for a twelve-year old.

I once confronted a gallery owner who was proudly presenting a newly discovered work by Mondriaan [1]. An original black and white photo in an old newspaper [2] was shown as proof of authenticity. But many details such as the creases in fabric differ in the original and the new painting. No OpenCV required to see that. Mind you, the picture is already framed with Mondriaan standing next to it. Unlikely that he's still working on it.

Instead of responding, the gallery owner simply turned away.

[1] https://upload.wikimedia.org/wikipedia/commons/b/bb/Cavalini...

[2] https://www.vrt.be/vrtnws/nl/2022/03/02/nieuwe-werken-mondri...