Wow, this is an amazing first story! I like the idea a lot. You had really great dialogue in the beginning! :)
Thanks for writing!
Truth
PS- I was born in Arizona! ;)

I like it. It's a really fun concept and the main character is lovable. Anna has a personality that befits a young angel; so naive and pure and eager to make a difference. Her being overwhelmed is also a good detail. But there's something about the story that's still making me see it in dull colors. Maybe you could be more creative in the way you describe the characters? Anna loves to observe, so it'd make sense for her to not just say "dark hair" or "medium build." And there's those people she's been keeping an eye on for a while; if she didn't know their names, why didn't she just name them? Like Ponytail? And there seems to be a rush in every chapter, like nothing really interesting is happening. It's just school. Shouldn't her naivity be getting her into trouble? Like a bully picks a fight with her or she accidentally brings a frog back to life in science class? Will she eventually discover the outrageous joy that is chocolate?

I like this very much so far. It feels like this has had some research done for it, and our young angel is very sympathetic. I like the... atmosphere in this story, for lack of a better word. It's very warm, and I like the characters even though I've only just met them - it draws you in. The only suggestion I will make is to change your dialogue punctuation: for example, "'You can take a seat.' She says kindly" really ought to be "'You can take a seat,' she says kindly".

I enjoyed your writing do far, you did very well for you first real story, keep it up!