The archetypes is presented in four pages: cover, one page of description and two of OGL. It could use more context for the archetype such as suggestions for where they might fir into a game world and what sort of culture would inspire them. Also, and this is very common for such materials, is a lack of support material such as a new spell, magic item, place or even a legend to inspire adventure would make them some much more interesting and easier to fit into a campaign.

With he Barbarian Path of the Unicorn, you get a mystical unicorn horn which you can summon and use as a weapon (naturally). Their later ability include healing and protection, the Unicorn's Healing Touch is good as it is a minor heal effect plus wipes away poison and disease, so really useful in some circumstances, just a little bit of healing in others. Shimmering Shield is a one round duration big boost to armor class that the barbarian can use on others, it seems really good but it is a 14th level ability, so . . . In any case, a healing, protective barbarian is an interesting idea, there just seems like there should be a bit more here to support that.

A good start but could use a bit more.

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