I'm not sure what to make of this. It certainly has plenty of contrast and texture. It looks like there's something stuck to one of the bones, but I can't tell what it is, so I may be missing the whole point.
On a technical level, there are some spots on the bones near their lower ends that are burnt out. I suspect the scanning because negative film usually doesn't have burnt highlights unless it's overexposed. Might be worth another scan at lower brightness or with a curves-type adjustment. I might also crop a lot on the bottom - the foreground isn't as interesting as the branches above the bones which echo their shapes.