This is a middle-to-late elementary piano piece for Left Hand with optional Right Hand part. If you wish to play the whole thing with the Left Hand, feel free to omit the first treble clef note in measures 4, 8, 14, 16, 18, and 20.
I wrote this piece for a student who broke a finger in her right hand. She can still play open fifths, but nothing else. I hope this helps you, like it did me!