I've got a quick and easy concept that should work for this. I know my post count is rather small (I honestly only created an account to get a question answered and to hold all my pdf's from purchases initially), but roleplay is something I've enjoyed doing for the past decade, so here goes:
Tamsin, Lawful Neutral Pyrokineticist
HP: 126 (1st: Max+Con+FCB+Toughness
2nd: Half+1+Con+FCB
3-11: Half+1+Con)
Str: 10
Dex: 14
Con: 21 (Human +2, plus 4th and 8th increases)
Int: 12
Wis: 12
Cha: 8
Traits: Making Good on Promises (+2 trait bonus on saves against fear effects)
Hermean Paragon (+2 trait bonus on Initiative checks)
Simply, she's a girl around 17 at most. Standing around 5'4, Tamsin has dark hair that has a shimmer of auburn in the sunlight which trails to her mid-back. Her skin is lightly tanned, though she traces her heritage probably from Taldan and Tian parents, and she has amber-colored eyes. Athletically built as many people from Hermea, she exudes an air of perfection, though her own charm isn't all that kind. Hardly personable, Tamsin keeps quiet in light of other prominent personalities, though she has a tendency to speak out when annoyed or enraged, taking things too far verbally often. It's likely her temper is what caused her to fail her homeland's test.
Born and raised in Hermea, Tamsin was quickly cast out of her homeland after failing the tests of her nation that were expected of her when she came of age. Understanding the repercussions, though not fully accepting them, she went out in search of power to be able to come back to the only home she knew and found worthy. What initially started as a contest of strength in a tournament for sport quickly led to an arrangement with a mysterious woman named Myst. Guiding her for the better part of a year had paid off, and eventually led to Ustalav where Tamsin parted ways with the strange woman and met Professor Lorrimor. After witnessing her initial displays of power, the professor had gone out of his way to arrange a meeting with some of the Hermean seekers who tracked natural potential across all of Golarion, for a future favor.
Promising to see her without any detail as to when, Tamsin set out into the world again. At least until the death of Professor Lorrimor came around to bring her back to Ustalav one more time... (Beyond this I'm not aware of the story of Carrion Crown, so this is up for exploration. I just used the player companion for the AP to put the CC-specific stuff together with her campaign trait.)
I can also supply better detailed math for a full 11th-level build if the GM considers this character.