Hmm. Well I'm sure she's a sweet and willing girl, but I doubt she's a purebred Gypsy. If she is, then she unfortunately, isn't a good example of the breed at all. Do you know her pedigree?
Her size alone, makes me think there's possibly something else in there. How old is she? If young, she's a bit sway-backed. Way too long in body, for a Gypsy and really, not enough body to her. Even if she'd been pastured for years with no care, she doesn't have the feather necessary for a Gypsy. She is very goose-rumped with an overly long croup and low set tail. She's also a bit narrow, for a Gypsy.
Enjoy her for what she is. Definitely not breeding quality, but I'm sure a lovely girl to hack around on etc. Have you jumped her at all? I'm sure she's got Gypsy in her and they love to jump.