I'd dial back or get rid of altogether the tear specularity on the Firefly one. Just my opinion, I've always felt that alot of those commercial character packs overdo it with the tear mat. Strange you're not getting any shadows on the jewelry, not even occlusion shadowing (if you're using IDL), I'd check the jewelry properties to see if they are set to cast shadows. Or at least the headband. Still... doesn't make sense from one render to another.

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