The good boy :3

this is just a really simple yet fun datapack that backports the 1.21.7 "Dennis" painting, you can also find this datapack on Planet Minecraft!

How do i enable this data pack?

so, the file you have is both the datapack, and the resource pack! basically, add the same file to both the datapack folder in your world and your recource pack folder :D (this is so simple lol)