This is a pretty intense picture, I like it a lot. The only thing I can think of to change would be the over exposed wall behind the "living" rose. I am sure you had to do it this way because if you didn't then the other rose would be lost in the shade. But maybe if you put your own soft light on the "dying" rose you could get it to stand out in the shade and get the proper exposure for the "living" rose. I don't know. Well done either way.
I really like this shot in terms of the challenge (even if as I suspect it is set up) great visual interpretation of how even small changes can have a huge impact on a living things environment. Very clever