Hi Brian,
Lovely capture.
I wonder if it would work if you just selectively burned the lighter white patches in the upper right hand corner. Should be easy to heal out the little spots on the leaf, if removing the wee imperfections in the leaf suits your vision.
Are we talking about those two small brown spots on the leaf or that larger area which is part of the background behind the leaf?
I would clone over the leaf spots, merely to keep everything looking clean and tidy, then slightly tone down the larger brighter background area.
A very pretty flower indeed.
Irene