She kind of reminds me of a pony. My other filly who is younger than she is passed her up in size. My other filly was a paint/quarter horse. I have lots of people interested in her because she is so little...If she was older she would make a great kid horse. LOL
Oh I love her! Lol She could be a Quarter Pony (as stated above) & you could probably even register her as one if you really wanted to. They go by height & conformation, & your horse doesnt have to have a pedigree.
But she may be a QH. My aunt owned a purebred, reg QH mare who was 13.3hh ;) She's only 2, so she will get a few more inches to her.