The fallen leaves swirled in the wind

 I think the yard looks great all covered with yellow leaves.
黄色い落ち葉のカーペット とっても素敵

I picked up a fallen leaf in the garden

to make a pressed-leaf bookmark.

落ち葉で しおりを作りましょう

Let's create a huge pile of leaves we can jump into.

落ち葉の上に飛び降りるのは 面白いかも

I swept the porch. There were lots of leaves on it.

The fallen leaves swirled in the wind.
たいへん　風に舞った落ち葉を集めなくっちゃ