We can't work off that photo, you'll get more replies - well, more useful replies at least - if you give us some decent photos. Standing square, level ground. If I can get my 14 month old to stand square, you can get her to.
It's really going to help if she's even standing as close to square as you can get her. And try to take pictures from all four sides. You could probably leave her mane unbraided. The curve of the braid misleads the eye and makes her neck look off.
Well, she is really a nice looking horse, and from this photo, I can see nothing that pops out as an obvious fault. She looks very well put together, but more detailed things can be judged when you have the squared up photo. She looks super healthy, to the point of , well, shall we say, "well loved". (which is a euphamism for a wee bit on the chubby side)