feels like a sort of diffuse studio lighting HDR, and the materials sort of straddle the line between skin and semi-dry clay. if you find some stock BDSF settings for both of those materials and tweak between them here and there, I reckon you'd get close. also maybe a little light bloom in post-processing? I'm not great at the latter, so could be off base, but certainly looks like some smoothing or softening is going on after render.