I discovered something old: noise. Specifically the old Noise Filter. I wanted more grain/noise in this photo but wasn’t getting enough from ACR. That’s when I decided to use the Noise Filter where I discovered the Monochrome checkbox. I unchecked the box even though this is a black & white image. I like the color noise it added. This was the kind of dirt I was looking for. On another note, Andrea was a great model and I should’ve shot her a few more times.