A great jumping-off point for homebrewing with some fun ideas and cute art. The archetype itself feels like it goes a little too wide, it could have been safely split into two wholly separate archetypes that focused on different aspects of the original and both would have still felt complete. But even if you don't plan on using the archetype itself, many of its feats and spells could be easily repurposed as relic gifts for a kitsune PC, effects for magic items, or one-off techniques given by old masters as quest rewards.