This one feels like the very definition of one way of interpreting this challenge--and one of my top three overall. I would never have seen this and known right away that it was a photograph to begin with. It just feels like a sentimental, artistically compelling visual composition.
For me, this is nearly perfect exactly as it is. But I do wonder if raising the black level would deepen the vignette effect of the shadows at the edges of the composition and really make your subject pop just a bit more.