for yellowbelly, belly shots are a must.... belly pattern and pattern around the belly are normally the clearest sign. But the belly appears to be just white and the lower sides seem white as well. Strange. But it also doesnt look like a typical pewter, it looks very light-colored. but i would say very light pewter with paradox, not really yellowbelly pewter.

i would keep & breed it. Yellow paradox passed on from dad to son, really? do you have breeder pics of the parents, and the paradox?