I spent a pretty long time as a moonkitty and honestly I was never that happy with my skin color. It never looked 'right' in many lighting conditions. The way the skin tones of moonkitties have a blue/gray tone which made you look unhealthy always bothered me. I changed to a sunkitty and in general I'm a lot happier with how I look now even though I'm not a huge fan of slit irises.

You rarely if ever see your fangs as a moonkitty either, because of the rarity of situations in this game where you are looking at your character's face and your mouth is open at the time. The only actual instance I'm aware of when this happens is the little celebratory victory shot at the end of a dungeon.