I like the intricate shadow patterns, but I think the ornament(?) comes across by far as the dominant subject. Maybe shooting with the light at a lower angle or positioning the glass partly out of the frame would emphasize the shadows more.
Things I would change about this: I'd use white balance or levels to make the background surface lighter, I'd remove the hanging string or wire hook that distracts the eye, and I'd crop it so the shadow isn't touching/cut off by the frame