Ooh nice job portraying such a lonely, distant atmosphere here. I think your choice of limited colours is super effective and harmonizes nicely with the musical piece.
The long precarious staircase to create distance from the viewer to the subject is a nice touch, too. Haunting echo-ing piano keys make me think of haunted mansions, and I love that the bright light of the door frames your subject with super high contrast. Solid piece!
Keep up the great work.