In 2019, the artist Lothar Götz transformed the Towner Art Gallery in Eastbourne with his mural 'Dance diagonal'.
It will be on display until 2024. Here are some photos that I took during last year's visit: https://365project.org/tags/towner%20art%20gallery
The gallery currently has an exhibition of paintings by John Nash, who was an official war artist during the First and Second World Wars. It's a wonderful retrospective and includes works by some of his contemporaries.