Colour makes no difference. It is conformation, that judges look for. She is obviously Tobiano. Could carry Frame. Test for Frame/LWO. Some breeders like a 50/50 colour pattern. Most don't care. At the moment, your horse does not look as show quality. This because she has some conformation problems. Doesn't mean you can't show her in many other diciplines. Other than halter, that is. To show her however, you would need to get her in show condition. Not easy with Minis.