I see in the side by sides that she does appear a brighter yellow then the other especially in the dorsal markings. Also that belly picture without the flash and I am almost convinced of it. The one thing I notice about YBs is the way there seems to be the white the rises into the flame from the belly but is seperated by the darker of the checkering. In non YBs where the white can rise, it doesn't usually appear seperated. At least that is my experience.She might be a little low expression but that could be the granite influence. Also she is really blushed compared to the others and as I recall your YB is incredibly blushed is it not? I hope I'm right but she is a looker regardless.