I want to build a fox person from the changeling rules. Like the kitsune race from pathfinder. What should I spend my surge 3 karma on? I know that I want fur, a fox tail, a foxes head. I am allowed by my gamemaster to build a fox person. I can pick any fox-like qualities that I want. I only need help with the changeling qualities. Here are some Ideas of what I believe foxes have. Some of the negative qualities are my personal choice. Is there anything I am forgetting or should take?
Positive
Karma
3 Claws (Digging)
3 Functional Tail (Balance)
4 Insulating Pelt
4 Broadened Auditory Spectrum (Ultrasonic)
3 Keen-Eared
2 Low-Light Vision
3 Vomeronasal Organ
22 Karma
Negative Metagenic Qualities
Karma
4 Striking Skin/Fur Pigmentation (Golden or Violet)?
4 Nocturnal
5 Bioluminescence