I don't know what the heck I'm doing processing-wise and achieve what I consider to be the right result simply using Adobe Camera RAW (ACR). Over a few years, I have learned what each of the sliders do to the image and what I like/dislike. I have no idea what most of the sliders are doing in a technical sense, only what the effect looks like.
That said, the two pics you posted remind me of the effect I get if I overdo the 'Clarity' slider, one effect of which seems to be an emphasis of blacks and dark colours. You can get away with it with men but it doesn't look good with females, in a similar way to sharpening.
If this isn't it, perhaps it at least provides a clue to what's happening.
5D3, 7D2, EF 16-35 f/2.8L, EF 24-70 f/2.8L II, EF 24-105 f/4L, EF 70-200 f/2.8L II, EF 100-400 f/4.5-5.6L II, EF 1.4x III, Sigma 150mm macro, Lumix LX100 plus a cupboard full of bags, tripods, flashes & stuff.