Works for me.

I like the contrasts and internal conflicts too. She wants to find someone trustworthy, and she wants to be trustworthy herself, but she is incapable of trust, having grown up in a place where everyone's a liar out to get her. She's learned far too well how to lie and trick in turn, that she is hardly a good example of the kind of person she seeks or wishes she could be.

I also like to think she's the kind of person people just instantly take a liking to, despite or even because of her grumpiness. You know, people tend to think she's cute when she's scowling, or something like that. And she definitely takes advantage of that. Anything to figure out the real motives and secrets of people.

I'm also thinking about the move that lets her change size, if it's still in 2e. I like to think her people, like the land they live in, can sort of fold themselves up into a smaller or bigger space. Or maybe fluff it as turning into a small animal, anything from a bunny to a fox or a medium-sized dog. If that's appropriate to the setting and the game. 

Just some quick initial thoughts.