Critter from my headworld.
None is truly whole white, other than strips or spots here and there and their belly and bit of the inside. Often you don't see their eyes because of the placement of the horns but they see well enough, just moving around their head more.
Forest dweller - The biggest of the breeds. Slow moving but can keep up to a horse trot but usualy not faster than that when moving greater distance. It might have short outburst with greater speed but that is more to scare predatores to show it's size and attack with their horns. NEED big amount of food to stay healthy and usualy a tribe don't have more than 3-5 of these to move around with. Those that have more is traveling in packs or caravans to support nearby towns and cities with items.
Sand runner - The more yellowish one, is closer to horse size, still can be used for transport of heavy items and quick runner when need to be.
It eyes can be slightly golden, brown, slightly towards red but rarely blue eyes. They are quicker than the other breeds and often on the move.
Snow tramper - The bottom, more fluff to handle the colder climate and more muted colors but still black hair on it's tail. Just slightly around the same size as the yellow one but thicker neck underneth it's fur and wider feet for for walking on snow. Not very good runner since it want to keep energy and more defensive instead.
The iris can be in soft green, yellow-brown or rarely blue.