For sure. Hair is
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, skin texture is
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, though I edited the maps a bit to remove the eyebrows (so I could use different ones), as well as remove the blemishes/scarring. I did this for the diffuse, SSS, bump and normal maps. There are others I should probably have edited too, but those are the most important and the scars are basically not visible anymore as far as I can tell. Personally, I really really enjoy this skin.
For the expression (and a slight hair tweak), I actually used Bluestacks + FaceApp. I find messing with teeth and smiling expressions to be tedious and although the 8.1 facial rig has improved things, it's simply easier to use AI in renders like this where the face is clearly visible and I want the character to be smiling. Photoshop also offers neural filters which can do similar stuff but it's cloud-based so you will need a license. I've seen that this technique is frowned upon by some, but I think the result is too nice not to use in situations where you can and want to. I suspect as many others do that AI in the coming years will reshape how many of us approach realism in rendering.
Hope this helps, let me know if you have any other questions
