You've done a good job.
But for kicks, can you try something for me? Turn off all your layers for now, so you're back to the SOOR. Then add a Channel Mixer adjustment layer, and check the "Monochrome" checkbox. Enter 0, 0, +100, 0 for the four values. This will turn the photo black-and-white. Then lower the opacity of that layer to your taste (I found that about 60% is good).