The grapes look like purple moons -- you've gotten so much color variation in them with your wonderful use of light against the black background. One of my top picks this theme
You do well to call attention to the leaf in your title. One of the best things about this is the bit of purple that shows through the translucent leaf. The lighting here is perfect. A beautiful image.
I like your choice to name your entry "The Green Leaf" and have the leaf in focus, even though this is a purple challenge. Compositionwise, I'm not sure I like the 2 grapes one on top of the other. I would've cut out the grape at the bottom and placed it behind the leaf and 2nd grape on the right side higher than the grape on the far left, forming a triangle.