I think her withers are exactly where they need to be. :) I think it's lack of conditioning in the top of her neck. If you look back on all the youngins posted in this thread, they all have the same problem, but not to your girl's degree. Henny has it but it's a bit difficult to see with the coloring and braid. It just looks like the neck doesn't tie in to the withers well enough, but it should come around and look normal once they grow and fill out.
If you look past the neck and malnutrition, I think she's actually rather well balanced. Her neck ties in a little too low on her chest. She's got a good back length and nice big shoulder, even if it is maybe a bit too steep. She's got nice thick, strong looking legs. Her pasterns might be a touch long, NOW, but babies always seem to have loooong pasterns and then grow into them as they age. She is a little sickle hocked in the back and toed out, but as she fills out she may straighten up. I really like her. :) I'd love to see her again slicked out in the summer with more condition on. She'd look great then.
There on the tips of fair fresh flowers feedeth he; How joyous his neigh,
there in the midst of sacred pollen hidden, all hidden he; how joyous his neigh