This month's wallpaper actually is 4 wallpapers: I'll show you all the images from the last post in which I explained the workflow in orignial size.
1) Original image 2) converted to gray scale 3) adjusted contrast to complete image (hair and bush too dark) 4) final image with details in hair and bush, and slightly retouched skin
b.t.w.: this image is part of the second part of the "drunken reader"-session. You'll see the complete series soon - I am working on it :-)