Alianovna Mironoff [Hunter]

Name: Alianovna Mironoff
Nickname?: None
Age: Unknown, looks around 10
Human/Demigod/or Nymph?: Human
Personality: Not much is known about her, as she declines to tell anyone much about her (mainly because she can't, and sometimes can't remember, and also because the reason she joined the Hunt was her life, and she wished to no longer be a part of it, and so ran away with Artemis), but she is intelligent, focused, and a deadly opponent. She is impassive to most things, but she can crack a smile every once in a while with her sisters.
Looks:

Spoiler:

Backstory: No-one save Alianovna and Artemis know her story, but there are some things that she does not mind anyone knowing. She has roots in Norway, and with Viking marauders that sought for new lands. She has a very old way of thinking and fighting, and she has been around longer than Astra. She stays away from anything new, exotic, or confusing, until she knows it well enough from a distance to approach it with care. She shies away from any questions about her father, mother, past, heritage, and things like thaat, slipping into the shadows to hide. She has trusted none with her story, save Artemis, who already knew, and had been watching her for some time. She has good connections and rapport with the wolves of the Hunt, and it is something she has always had, and no-one questions her. Someone did, once, and they got a furious sign for Home. No-one asked again after that.
Weapons?: Alianovna manages to secrete knives on her person, and seems to have an endless supply of the blades ranging from tiny, razor-sharp, inch-long to rather large, dagger-sized. She uses them with deadly accuracy, as well as her surprising hand-to-hand skills - she can take down an unexperienced opponent in a move, ann experiencedd one in just a few. She rarely uses the usual silver bow and arrows, but when she does, her accuracy iss no less precise than with the blades.
Strengths: She is a deadly warrior, even if she doesn't seem it, and often the element of surprise is her greatest weapon, as she can sneak up on opponents and take them down before they even know she is there. She is very nimble and quick, and is able to use anything to take an opponent down. She has been known to fight dirty, but occasionally engages in a fair fight.
Weaknesses: Unlike most of the hunters, Alianovna is human, and therefore has no powers, and nectar and ambrosia hold very high risks for her if used. This means she is at higher risk of death in battle, as she can only use human medicines to help in case the godly food reduces her to ashes.
Do you vow to be an Eternal Maiden?: "I pledge myself to the goddess Artemis, I turn my back on the company of men, accept eternal maidenhood, and join the Hunt."
Other?: She is mute, whether selectively or not, no-one save Artemis knows, just as they do not know if she is deaf or not, because she communicates through signs. The sign language she uses is one she seems to have created herself, as the the signs do not correlate with any other sign language, but the signs are very clear, and she can write somewhat in the dirt or point if no-one understands her.

I like the idea of the personality. But it needs to be expanded on. For example, perhaps expand on why she doesn't tell people about her.

Mainly because she can't, but a little bit added to clear that up.