Playing peek-a-boo

through the maple leaves, the moon -

        set to be eclipsed.

I really wanted something like "practices" or "practicing" to be eclipsed but it just doesn't fit. Or "practices eclipse" but really eclipsed is something that happens to the moon, more than something the moon does. But maybe you can practice for something that happens to you. So maybe I would go with 

           "practicing eclipse!"

So - out of time! Hope the sky is clear tomorrow.