Thanks Nik. Have now significantly updated the original. See here:
https://www.astrobin.com/full/xigo5z/D/
The initial updated version had stars that were the result of the luminance layer being applied to a starless image, whereas the latest version has RGB stars blended with them. It makes the image a bit busier... Still a proper SHO version to do although I’m now pretty happy the image as it is, although comments and ideas welcome as always.