Inflation Tom! 2 cents up to 20 cents. Sigh!
So given the fact that he has an interesting portrait of a man he ran across unexpectedly, I think it is worth trying to correct in Camera Raw or Photoshop. That would be a skills challenge. But I think it would not be impossible to focus on the subject. The background is already blurred and less significant. As you noted, the exposures are wrong, probably both for the subject and the background. I agree, as Inkz pointed out, the lighting is what needs to be sorted out. Then Gal could concentrate on playing with effects.
So, keeping with the current trend, that's my humble 20 cents!
To illustrate my ideas. Bear in mind, this is not one of my areas of expertise. My bg in photography is limited; I am a painter and printmaker with forays into graphic design and fantasy manipulations.
I generally tend towards making darker photos. In this instance, I tried to reverse that tendency, but though I use histograms, I am not as much technical as purely visual. Here is what I did, making a quick selection of the background, smoothed edges in refine selection, and copied that to its own layer. Then I applied a simple levels adjustment to the subject and a curves adjustment to the BG. Finally I went back into the adjustment masks, brushing with black (only minimally on the dark shadows in the trees) and then returned some original dark values to the subject, by degree, to the hotter spots - especially the hat and some on the shoulders, etc. - resulting from the adjustment to brighter. There are spots on the hat that seem devoid of pixels, so unless someone with more expertise or the right filter set can bring something up, I stopped there.
My result:
Actually, I recovered a bit more in the hat by making a selection of the hotspots and applying an adjustment just to those. Some improvement: