Upload & Sell: On
As mentioned, it is a simple photo and those can be incredibly powerful at times.
A few things that strike me on this one is that by looking at the image, I have no way of knowing that the two pieces are related specifically as puzzle pieces. Even with being told that they are puzzle pieces, I still can't see how they are supposed to fit together or where there is something missing from the larger portion.
I think there is a nice relationship of scale/weighting involved with the mass of the two pieces, but I'm not too enthused about their compositional placement being essentially side by side (both visually on the centerline of the image).
I might try to reposition the pieces such that they present in a less static way. Showing the missing portion of the larger piece is where I'd start. Then I'd look for the leading lines to connect it with smaller piece and consider foreshortening to emphasize/de-emphasize as desired .. which btw, I see your use of dof to similarly present.
On a different note, there seems to be some artifacts on the larger piece to be wary of ... or maybe they are just specular highlights.
I think you should revisit the image, but ask yourself "What's the point?" or "What's the message that I want to convey to my viewer? Then allow those answers to influence your decision making using the compositional elements involved.
HTH, looking forward to seeing more.