You have asked some large questions:

I assume you are working in LightWorks?

• Porcelain

This could be a lot of things - what material are you using?

I assume ceramic, glazed? Doesn't matter.

Dial in a little less mirror and a little more emission into the shader

• Yellow shade ["Son, stay away from that yellow shade because that's where the Huskies render"]

Perhaps it is a reflection in the mirror.