Trim that girl's feet!! Her hooves look really long.
As far as conformation goes, they aren't really great pictures. In the first picture, it looks like her shoulder is leaning away from the camera/her head is turning towards the camera, making her neck look shorter and her head look bigger than they probably actually are. Obviously she's still a bit downhill. Overall she looks proportionate. The slope of her shoulder and croup are both a bit steep, which may make her gaits uncomfortable and short strided. Her pasterns also look a little short and upright, which could add to a choppy stride.
That's pretty much all I can tell from the pictures. She's cute, but no conformation queen at this point. As for backing, I see no reason to ride a horse before it's three. At two I would work on all the stuff that's actually important; standing still for tacking up, bathing, grooming, farrier, loading on and off the trailer, desensitizing, groundwork etc.