You could have a thousand versions and people would not agree on a deffinitive one as being best. It shows how subjective skin tones can be.
Sean's version could be said to be more 'film-like' and I bet you anything that the model herself would chose that one as being the most flattering, yet some people may find it unrealistically warm with overblown skin highlights. On the other hand, all the other samples before his look cold and flat which some people may prefer.
My own preference would be towards Sean's but less exaggerated, a bit more density on the skin, it's far too yellow, a bit less warm (hair and skin), and sharper in the right places.
I remember printers who went by skin values always mentioning that skin needs a bit of cyan to give it modelling and depth.
Also, maybe the original wasn't sharp in the eye area to start with, so then, no matter how much sharpening you apply, it never looks quite there.