She desperately needs weight on her! She's not standing square and she's turned towards the camera, which make it difficult to judge her legs and shoulder properly, but please try and make sure that the stables build up her weight! Look at her flank - that's not just a 'hard keeper' (which is no excuse; you have to take on the extra work to keep them up to a good weight if that's the case), that's a horse that's getting dangerously thin.
Putting weight on her would improve a lot of her confo, too - I'm mostly thinking of her bum and neck when I say that. But I'm no expert; that's just where it appears to me that fattening her up would make things look better even before you started putting muscle on her.
If you believe everything you read, better not read.