After something of a hiatus, the Severn Estuary Art Atlas (SEAA) is up and running again.
This is a public google map showing a range of art related to the Severn Estuary. There is also a blog and the map and blog are inter-linked (although some links to be put in).
Here is a screen grab
The blog is https://severnestuaryartatlas.wordpress.com/
The map is below