Obviously, the first thing I did was darken overall.

I also used a separate layer to darken down the background overall. I erased a soft circle from around the face, to separate it from the wall.

I then flattened, and created another duplicate layer. On that one I darkened overall by about 50%, and used a large, soft erased to erase from the inside out to create vignetted corners.

Flattened, created another duplicate layer and sharpened with Smart Sharpen, H/l at 8% fade, 84% tonal, and 1 radius, shadows set at 20% fade, 19% tonal, 7 radius, and Sharpen set at 44%, radius .8 pixels, and remove Gaussian blur.

I then set that layer at 50% opacity, flattened, and uploaded.

Thanks for a fun image to play with.

~Vic~