Hunters are judged off movement, jumping style, and even personality. You need to be able to go around a course as smoothly as possible. You can have a horse that jumps the moon, but that doesn't mean he's going to be suitable to be a competitive hunter. Jumpers is judged on speed and height of fences. Movement doesn't matter at all if they can jump well. Your horse is cute! But I can't say what she'd be more suitable for wihtout a video.
And just to add, I think dressage is absolutely crucial for all jumping horses but a horse that has the ideal conformation for dressage is not the same ideal for the hunters. Same as movement. A horse that's a good dressage mover is not necessarily a good mover in the hunter ring. That being said, the majority of horse should be able to do the lower levels of both.