How did the artist put the QR code on the painting? Did he also painted that one out?
I think he did.
This guy is very creative and he's using it for donation. I've seen someone posted this before and it's very inspiring to those people that are very appreciative with artists artwork.
Earning money with skills is the most legit and professional way, it is better than investing.
His way of showcasing is talent was different and unique to those who sells it directly.