Thanks for this Ian, it is most helpful.
I’ve re-edited the original bearing this in mind and left a layer of must above the buildings.
The final image isn’t the same as the one above, as I haven’t been able to replicate it. I’m still learning editibg, and can’t remember the settings I used (or even which app it was).
Basically, when editing I just make adjustments until I like the look. I suppose it will come with experience that I will know how to create a specific look.