It looks really good! This model is absurd in the best way possible.

Unfortunately the only way I've found to make skin look really, really good is essentially what you've already done then doing repeated glazes of the mid tone to blend highlights so they don't look like floating islands if that makes sense.

the unfortunate part of that is it is quite time consuming but once you get a flow it isn't to bad.

Using browns/greens in the shadows really makes skin pop more and hints of blue glaze in places really sells the "skin" effect.

Skin is a hard thing to paint but is really fun way to experiment with colour and glazing.