Thanks Jacob and Dave - I'm enjoying the learning experience that comes from experimenting with everything in my setup.
Dave - thank you for your excellent tip. That's what I like about this group; the willingness to share knowledge and help utter newbies like me
Per your suggestion, I've just had a play using APP's 'balance rgb' option and it resulted in a significant improvement in colours - I'm stoked
Only 36 mins of data does not produce a startling image however it does provide an idea of what I can look forward too with more effort.