I may be too late, but I was just entranced by this a few moments ago and realized it fit the assignment. Both of them are the shadow...neither are the actual objects. Unfortunately, I can't capture the motion of the leaves shadows through the geometric shadow of the rattan.
That's definitely my favourite. The rows look three-dimensional to me, like a series of steps (although my daughter says she doesn't see the same 3-D effect). Very intriguing picture.