Very interesting! Yes, darker shadows would make it even better, as long as you do it selectively and don't further darken the areas that are already dark.
Thanks. I had the same thoughts on bringing out the shadow detail, but I couldn't get anything better than this. My PS Elements skills/use are very limited, somewhat by choice: I play with levels, sharpness, cropping, and color correction. I could probably get better results if I used more on the arsenal. I tend to really like high-contrast b&w shots, so I went with this version of the photo.