I only painted the outside of the container, after all .... they are hanging. And if you can see the inside of the containers while they are hanging... well... you probably can't fit in my house :)
The last step might not be necessary but we sprayd "Gloss Spray varnish" because I thought they would look nice shiny. Heck, everything looks better with spray high gloss shiny.
Enjoy the sunshine! And if you can recycle something.... use metallic Christmas green, ha ha