I was just going to say the same thing honeysuga said. She's got a little pot-belly going on here, lol, I think it's cute. I think she looks really good, I don't see hardly anything bad about her, aside from the 'lacking some hip' deal. Other than that, really cute!!!
She's really adorable. I am by no means an expert but what I notice off the bat -- nice shoulder, long-ish pasterns, not much of a hip, and a thick neck (though I like the way it ties into her shoulder...and personally I like dem thick necks). So pretty much what everyone else has said. :)
I can't recommend any disciplines though, but she looks fun.
In the first picture, it looks like her hindquarters are sloping too much, and she looks toed out on the hind. Maybe it's just the way the photo was taken...not sure. LOL.
The only other thing I see is that she has a big belly (like meantioned in earlier posts, LOL) and is a little undertoned. Otherwise she looks like a sweetheart to ride, and she is tracking up nicely in the fourth picture. LOVE her face! Too beautiful!