Cant help you out with an edit right now, but there is a ton of tutorials on YouTube for lightroom that will fit darktable too. Try to search for moody brown style.
Mainly they selectively desaturate and turn the colours to warmer with color equalizer, except the greens in this case, which seem to be cold and more saturated.
Then an orangeish tint is introduced using colorbalance rgb 4ways tab. I think in this case highlights have the strongest cast.
Something similar:
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