She does have a little bit of mottled skin on her nose, but difficult to tell if that is just paint markings.
The feet are a giveaway though Cindy.... striped hooves on a solid leg is suspect... I think Duchess is right.
I really think she might be an appaloosa or part appaloosa outcrop. Lift up her tail and check her udder - if the skin is mottled she probably is. And if she's smarter than the rest of the horses and harder to get along with, she definately is. :)
So is this good or bad? :')