You should add a 'tip the artist' option, so if a user downloads an image for free, but appreciates the artist, they can just tip the artist whatever price they think is fair.
I think this would go down much better than paying $4+ for a collection(s).
A lot of people will happily tip an artist if they love the free background on their device.
Messed Up ✅
Accepted his mistake ✅
Apologized without excuses ✅
Reduced 85% of cost ✅
Made it better ✅
I don't think he deserves anymore hate after this