Great idea. I think a little turbulence added to the fall of the leaf would have made it a little more believable. As is the straight line drop makes it look a little fake.
Nice concept, but a tip from me would be to leave the ground less detailed, and with fewer things to focus on. Since the leaf should be the main action and have the attention here :)
Those are some lovely tomatoes. I would love to see a closer shot of just the tomatoes. The stripey in green is lovely! Wish I could find toms like that.