I think I'm not getting ebots for this thread. That's what I think. :-)

But to answer your question... The hair highlights haven't worked nearly as well on this one as they did on your original "happy accident". Here, they look metallic and generally false. Whatever you did on Schoadinger's Package hasn't happened here, unfortunately.

Is it the same hair? You could just save a material collection from the Schoadinger's Package hair and apply it to the new scene. There may be something going on with the lighting or render settings, but that should help at least.

(I know we're talking about the hair, but those chairs look as if they could do with smoothing turning on - and of course there's pokethrough on her clothes, which I dare say is on your 'to-do' list already!)

Quote - Now, connect the hair diffuse map into displacement and set displacement to 0.1 for extra realistic results.

0.1 what? Not metres, hopefully? :P