I really like this image. I hope you don't mind but I did a little rework.
I always welcome constructive criticism. The original picture was actually a bit darker/richer. Not quite your version (and certainly not the falloff at the corners), but I lifted the colors a bit so the couple can print it and get a nice result for their album, as I don't trust that they will use a print shop that can deliver accuracy in dark colors. Regarding the tone change, I like the floor/wall and the bride's skin, in your version, but I'm not sure about the dress.
I will be posting more pictures from this wedding, so come back for more suggestions if you feel like it.