This silhouette illustrates the nursery rhyme and lullaby Rock-a-bye Baby. Here are the lyrics:
Rock-a-bye baby, in the treetop,
When the wind blows, the cradle will rock,
When the bough breaks, the cradle will fall,
And down will come baby, cradle and all.
You can find an article on the possible origins of this strange lullaby here.
Here is another version of this piece. In this version, I added more detail to the figures to add interest, such as the apron and hair strands. I also tried out a vertical format.