HelloWilliam,
i have not tried it yet for myself, but
i just was looking to the files you presented and i do not like the flowers in 32 bit... they seem posterized.
Hi Pieter, unfortunately I don't have the original files anymore so I can't have a close look at them to check properly.
As I said, those are 200% enlargements and I am not sure how noticeable what you are seeing would be at print size ....
Later: Pieter, I went back and re-took some pictures and it would seem that I "overworked" the editing (on the original) - what you see there is not because of the process!!