Composition of Surfaces by Using Leaves

My teacher's final magic touch is adding a New Zealand flax to give enough height.

There are no more leaves left outside in winter. So I focus on my house plants. I found three different kinds of leaves that I can use, that also show their own characteristics and interesting surfaces. There is one Philodendron Selloum, one Tiger tail, and three of the same kind of leaves that I don't know the English name for (their white flower blooms at midnight and lasts for only two hours, and has a very strong perfume), I rolled each one of them and put them side by side. Last I put one white Mum to brighten the green. The teacher said the flower in this arrangement cannot be a focal point. 12/15/09