Completely made by me. Textures are obviously not but where fitted and "remapped" to fit the spheres.
Don't know if I should make these public or not. I plan on making more variants of the barrels and using them in future renders.
Edit: I Added extrudes to the metal rings on the barrels.
Fun fact: The textures being used for the barrels are in 2K
Yes this was made in mine-imator