Ah, she's not bad at all really, a few more pounds and she'll likely be good to go. If this is how she looks in person then what you're feeding is doing alright by her. I might give her a little time to fatten up a tiny bit more by laying off of work for a little bit, or only doing light work, but after that she'll be good to go into full training.
Just remember once in full training they can lose weight again because of the increase in calories burnt during the exertion. So she might need more feed once she builds up to a decent amount of work.
"They see me rollin, They hatin, Patrolling they tryin to catch me ridin dirty"