Had to work lots on this one because I inadvertently took it at ISO 800 when I wanted to take it at 400. Miri's skin had a lot of blemishes on it which I dealt with with the healing tool after I denoised the color image with Neat Image Pro + 4. I converted the pic to b/w with DigiDaan's black white action and noticed it was still pretty noisy, so I refiltered again with Neat Image and that smoothed out the skin beautifully. Finished with a light sharpening with FocalBlade.
Window light with a piece of white foam core board on the left as a reflector.