Too bad about the line to the left of the vase. Your exposure on the right made the line dissapear but it's still on the left. If this is a lightbox, try using a piece of white masking tape curved along joints to help with this problem.
The transition from fresh to wilted is almost too subtle, but it reads like a book on the life and death of a rose. I wonder if it would have been better to light it from the left so that the "dead" side would have been in shadows?
Great idea. Lighting is well done. I can see where the table and the backdrop begins on the left side of the vase, but not on the other side. I love the transition from freshly picked flowers to the slowly dying ones.