Can't really tell anything of her conformation, from the pic. She is obviously far from in show condition, but a cute and pretty girl. Have you pics of her in condition? I know her sire very well. A pretty boy, although doesn't have the exotic head piece breeders are breeding for these days. I don't know her dam at all.
I presume the judge who said she had amazing conformation and bite, was when you showed her. Never heard anyone saying a horse had 'an amazing bite' though. Very odd.
Why would you feel it necessary to breed a mare to sell her? Why not let the buyers decide that and whom to breed her to, if they desire?