You can't tell a thing about her without correct conformation photos. And as far as pure color alone, in appropriate color classes, APHA judges by 50% white and 50% color. She wouldn't do well in color because she's too much white, but that's a single class out of a hundred.
As far as her stud goes, I've never heard of him, and it looks like he's just another homozygous tobiano. His sire is a cowhorse, and there's a little halter bred thrown in.
I don't know about the paint horse industry where you live (AUS?) but in the U.S., she seems to be fairly run of the mill. Send us some better pictures to judge from! :)