Thank you all, her name is Flicka (as silly as it sounds.) My grandmother used to tell me the story by heart, and she was the person who inspired my love for horses- as well as taking me to my first riding lesson 15 years ago. She's quite the little spitfire as well, so it fits her perfectly.
I'd love to post another thread in a month or so with some more progress pictures. We've been doing a lot of bulking up, new dieting, stretching, and exercise (hills, groundwork, trust-building) in the last two weeks and I'd love to submit some more photos. I'll include better conformation shots as well.
She's an amazing little girl, she lays down easily on command (with a little help), smiles on command, and knows other various tricks. My intentions are to work with her in whatever she does best, trails, western, dressage, whatever she enjoys. She's just my backyard pal, so I don't plan on ever showing her or anything of the like. As long as she's healthy and happy, that's all that matters.
P.S. Thank you for the comment about the ulcers, it had come to mind at a few points after rescuing her but she has been checked out by various vets (I'm a veterinary assistant and tech in training.) I'll have to have someone more specialized look at her, the previous vets were so focused on specific past ailments that she hasn't had a good overall checkup.
Thank you all, I look forward to seeing you again in about a month!