Anyway, this looks very promising.
Can you do a couple of things for me? First, go to Edit>Assign Profile, and change from Generic RGB to sRGB.
Then, add a Levels adjustment layer, and Alt-click on the "Auto" button in the Levels dialog. Make sure it's set to "Enhance per channel contrast", and set the shadows and highlights clipping to 0.01% each. Click "Save as defaults" then hit OK. Save that (keeping it as a tiff is fine, or change to psd, either way is ok.)
Then, show me the photo and the 100% crop again.