I have tried, its not that easy, the GF1 TIFF converted in C1 struggles and introduces to much noise. I have used Vivezza in PS instead and highlighted and darkened. Happy upload the raw for you if you want to have a go.
I've had a go at editing in Elements and came up with this:-
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The first adjustment was in Levels. The histogram was bunched to the left, with the highlights curve ending well short of the left edge. I dragged the highlights slider to meet the curve and this recovered some of the dynamic range. The image still seemed a little dark for my taste, to be expected as the shadows curve went off the edge of the histogram, so I used Adjust Lighting, Shadows/Highlights and lightened shadows by 15%. I then cropped soem of the remaining darkness of the bottom and right side of the image. The danger with this type of editing is a risk of increased noise, but in this case I think it remains acceptable.
It's all a matter of taste, of course. There is no right or wrong way and many people would consider that your original exposure captured the mood just fine. Others may have used a smaller adjustment of the shadows or stopped after sdjusting Levels to get an in between result. I always think it is worth expoloring the possibilities to see which result you prefer yourself.
Thanks for sharing this lovely image and offering it for debate.