My sunflower is fading...

I have enjoyed my first giant sunflower but after two weeks inside it is starting to fade.  I was about to through it out.  I went to plunk it in the trash can and noticed how cool the petal and sepals were at this stage.  The camera and light box was already set up so I thought I would play with the camera and get up close and personal with this sunflowers last glimmer.