Hi Mick,
You are on the good way to create even more beautiful images!
I agree with bwa that the RGB channel levels are not equalised, IMO the green touch of the image gives a strange overall colouring. I do not know what processing soft you are using but there are a lot like PixIsight's SCNR to remove green in average, for instance.
Doing this; i bet, that the result will be way better!!
Best