I explained to the buyer that the image I rendered in Marmoset was using hdr light. and I also sent the image I rendered in the same hdr light Unity as Marmoset for completely the same result. even I posted to cgtrader support they confirmed it was exactly the same as the description. but the customer insists it doesn't look the same and gave me a bad and dishonest review. I suspect the client is just a dreamer who doesn't know how to use the model