Pretty, attractive head, I like it. Maybe a bit on the long side, but she's got some neat, cute arab ears. Needs a lot of work on her topline and hindquarters, that is why her neck appears to dip, and this should improve it.
She is bum high, and paired with that headset, it might be hard to get her to collect, het under herself, and work off her hindquarters.
Nice hind legs, not too posty or upright, and she doesn't appear sickle hocked.
She doesn't have a whole lot of muscle, probably a bit out of shape,and with some muscle conditioning, improving her topline, and making her use her hindquarters, she will look so much better.
I would call her a brown based buckskin, with countershading that's trying to mimic dun factors.
I've seen it on a pure arab before, he had a dorsal stripe, leg barring, and shoulder smudging, but he was sooty bay.