Some brilliant stuff there, Bier. I'd love our council to be open to these sort of things and it would certainly brighten the place up. Unfortunately, when you start allowing these things or even turning a blind eye, loads of sh*t graffiti 'artists' start scrawling everywhere. We've got one already who stencils owls all over the place, thinking he's Banksy or something but they just look a mess!
It would be great if they'd commission real artists like those in your posts.