@slowwalker,
Actually I have never seen this type of decoration before! It's pretty new thing to me and I can't remember I have seen this type of decoration under eaves can be found here in Sri Lanka! Coz most of historical places have stone basement and roofless (Due to wars)! Incredible photography and thanks for sharing such wonderful experience with us!
https://steemitimages.com/640x0/https://ipfs.busy.org/ipfs/QmXCCCniS48eWJU6bXXALaHgCiioxvmBbuWGdvUw9YKK8x
Cheers~