Ferrix - Character looks good so far. Remember that Hit Points are max for 1st level and 75% for each level thereafter - Round down at even class levels and up at odd class levels. The feats certainly look very appropriate.
I am a bit concerned about the specific history blending with the political realities of the Hombrew world - although the background need not be changed. But for this world of Enigmatica, the background as stated would really only make sense by setting her family as residents of Quehalost. Considering that Kiera was found as a teen, may I propose an addition to your backstory? [Note - this is a request, not a DM demand

Please feel free to speak up if I walk on the character concept you created]
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Skeleton Addition - please feel free to alter things or put them in your own words:
It turns out that Nitan Orao was an agent of the Adversari Mortuum (a group that will be described in the World Info thread shortly, I hope!). The words Adversari Mortuum literally means "To be against the dead." This is a collection of agents who quite intentionally train and travel the land in an attempt to quell uprisings of undead.
Nitan Orao belonged to this group and while he traveled the borders of Quehalost trying to push back the undead evils that exist there, his home was in Barghost. (The region all the characters ultiamtely come from as requested in the OOC thread). Nitan Orao brought Kiera to his home in Barghost, where her training commenced. Once she became a resident of Barghost and matured a few years, her progress was noted by the church and ultimately she became chosen for this group to go into Quehalost and strike out at the evil that exists.
If the above is acceptable to you in adding some homebrew world flavor to Kiera ... at your option she may have been invited to join the Adversari Mortuum (It would make sense as you describe her as a wandering light in the darkness") or not. You can decide if that would fit or not. Or, you can think about it and possibly have it as a character goal down the road.
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Of course, this addition (if acceptable) could provide two things for Kiera. First, it would give her incentive to have wanted to join this squad and go back into Quehalost. Second, the addition would allow the background to stay as written yet ultimately locate her in Barghost where the story begins - a very subtle, but important point for the game concept. The players are being sent by a "righteous" nation into a antion of "evil" to scout out the land so as the evil could be conquered. Loyalty to the church (and therefore Barghost itself) is part of why the characters must be ultimately located in Barghost - I hope that makes sense.
However, Kiera would not have any "special" knowledge of Quehalost unless she had the skill ranks in Knowledge(local) or Knowledge(Geography) to back it up. This would be strange for a cleric and her background, so I am certainly not suggesting the ranks at all. I am merely stating that if this addition is acceptable to her background and since her hometown was small and destroyed and likely no longer exists ... she would receive no special knowledge of Quehalost over and above the other players. That would help keep the beginning fair for everyone.
Let me know what you think. Assuming we have an agreement on the placement of her background within the world of Enigmatica, assuming that you do not plan on adding any unusual equipment to her inventory beyond that which is printed in the PHB or DMG, and assuming that her character sheet is completed later this evening, then please feel welcome to join the IC thread.