I really haven’t done that much to this image, but it looks almost like some of the work the grad student teaching under Wallace Wilson back in 1980 used to do. I can’t remember his name offhand, but I think his initials were “R.R.”. He would work on photos with a marker to outline regions of similar tone.
My process for this image was “crop”, “levels”, “curves”, “unsharp mask”, “scale”, and a small boost to “hue/saturation”.
Update: By request, the image as it appeared originally. The only thing I’ve done to it is “scale” via GIMP (Sinc/Lanczos). If I recall correctly, the gear was a Nikon D2Xs with a Tamron 17-50mm f/2.8 lens. It didn’t really need a whole lot of intervention, primarily the cropping to limit the visual elements.
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