Reminds me of "how do I get to Carnegie Hall?" A: "Practice". First, understand that Lightroom might not be the main tool of choice used here. But for the second photo,there appears to be desaturation used in combination with brush-masking. Look at how there's a fade to gray, especially as it approaches upper left of photo. I suspect this is on top of some overall selective color desaturation. There could be use of color curves in ToneCurve as well. The model's face has probably had a good smoothing in Photoshop using frequency-separation, but you might get some reasonable results using some combo of brush masking w clarity/sharpness/noise in Lightroom. The third photo uses settings of retro-toning. There are lots of tutorials on this and both free and $ presets. The first photo appears to have benefited from a lightly overcast day. Could have been additional lighting and/or fill off-camera. Add the kind of beautiful light you might only get using a fabulous lens in Bermuda! Summary: lots of advanced techniques here - high-end advertising images shot and retouched by pros who could name some of the techniques better than I. I hate to say, but no easy one-fits-all adjustment solutions that I can see. Back to the "practice" joke. People spend all sorts of time learning and perfecting these techniques. Lightroom and Photoshop tutorials are your best friends here, and there's a wealth of decent free tutorials on YouTube and elsewhere.
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