I suspect, Brian, that if you are careful you could get away with adding a tiny bit more brightness to this scene. White flowers are so tricky aren't they.
I just dl and activated Capture 1 Sony Pro 10.2. (seriously on sale) I'll redo this shot in it and try for a bit more brightness.
That is it, Brian. A good clear white now but without any over exposure.
Very nice, Brian, but am not sure about it being central to the composition.