<p>It looks like over done frequency separation to me, there are a million how to videos on youtube that really explain the process. But you can't do it in Lightroom, you need Photoshop, or a layers capable pixel editing program. Actually it looks so heavy handed it might just be an auto portrait skin smoothing plugin, but the frequency separation would do the job much better.</p>
<p>Why does it look like that? Look at the eyes, the first has crows feet lines coming off the corners of her eyes, and a little lineyness below her eyes, there is no way they are the only lines on her face. Similar on the second image, look at the texture in the makeup above her eye, well that texture should be in her skin as a minimum.</p>
<p>If you want to send me an image, either inline or privately, I'll do a quick retouch for you. This look has nothing to do with illumination or exposure, sure you can't make a bad picture good, but you can get "good" skin tone in the worst of images.</p>