Okay, I know I suck at picking out yellowbelly's...
But, from that picture, I don't think it is a yb. The reason I say this is because a yb has a clean belly with a "smudged" pattern running down the sides of the belly where the flames end. That picture shows pattern in the middle of the belly.
It is a cool pattern normal though!
Okay, you experts out there... am I right or not?