I like this one too, love the idea and the selective colouring but I have 3 questions for you:
1. Would it look better if you cropped it to a landscape format, making the hand and rose more dominant in the photo?
2. The lichen bloom on the left seems to be complementing the red rose, therefore would you like to see the lichen above the hand in full view and not slightly covered by the hand?
3. Would accentuating the wording on the headstone add or detract from the shot?
Overall I love the whole concept of this shot and I know why you took it too! :wink: