First thing I would ask is is she AMHR registered? What do you want to do? Carting is great fun, you can do obstacle carting, pleasure carting and the sulkies (which are a BLAST) Are you going in for fun or are you serious about breeding her in the future? What is her pedigree? What is the stallions pedigree that she was put in with and is he AMHR registered? How is her over all health (she IS beautiful) Is this her first foal, it should be? The miniature horse market is very very bad right now so if you plan to sell the foal keep that in mind. Has she been shown? What kind of movement does she have? Does she stand nice for clipping, having feet done, load well and things like that. How is her confirmation? It is hard to tell in the photos but does one of her back legs turn out (it could be the way she is standing)?
I can't see her neck very well, but he has a short thick neck. His head is blocky where hers seems more refined. She has nice earsHe looks to me to be smaller than she is. What where they breeding for, size? Do you want to keep the foal?
Over all they are nice mini's. She is very fetching. He would not be my first choice for a sire but his has his nice points.
Sorry for such a long post.