Clean define colours , shape, nice thick body and alert and hungry!
A very serious defect is the spine curves up and as they get older the tail sticks up . Hump back type spine . I've seen that in some from a farm in USA.
Also of course colours. Golds, whites, red white with nice even markings , sanke nice spots . Of course all in the eye of the beholder.
I still have some 4 inch and 3 inch and another shipment next week.