She looks quarter horsey to me, but it is hard to see her conformation through that thick coat.
DEFINITELY get a different saddle for both of them, unless you want to teach them to have cold, sore backs and bucking problems. Or look into better padding, like a built up wither pad or something.
The basest horn of his hoof is more musical than the pipe of Hermes.
He's of the color of the nutmeg and of the heart of the ginger.
His neigh is like the bidding of a monarch,
And his countenance enforces homage.
- William Shakespeare