I don't know if this topic really requires any rudeness....And 'accedents' are sometimes far more of a gift than you make it sound Zeke.
She is cute, and if she's a good girl, then that trait will hopefully pass on to her foal. If she's a poa she'll be a hardy, sturdy horse, and her foal will follow suite.
Her coloring is definitely a 'pintaloosa' with what looks like a combo of tobiano and sabino, which adds to the odd combo of markings as well as the roaning. Depending on her genes she could be a chestnut with the sabino gene, or she could be a red roan, which is more of a sorrel, not that I'm a genetics guru, but I read up on ALOT of colors and gene combination.
In other words...she's a wonderfully unique horse and if you feel you need to say more than she's just amazing, tell them that she's a red roan pintaloosa just to keep it simple and not get all into her genes lol.