You're still missing a hook here.
Tamsin, the youngest Norling sister, is a gifted artist with a vivid imagination. She cannot function in the outer world, but can feed wild animals from her hand. Since their parents disappeared on a sailing trip, she has started running away from home. Why is she running away? Is she traumatized by their disappearance? Soon she will be 18 and legally an adult. Her older siblings will no longer be able to keep her safe. But they're not really keeping her safe already, since she is running away. Also, just because Tamsin turns 18 doesn't automatically mean her siblings can no longer care for her. Does she want to leave them? Why? Do they keep her locked in the house right now?
A homeless man camping in the hidden redwood forest behind their house brings the crisis to a head. Tamsin claims he is the fairy king who is her father. When he is found murdered and Tamsin found wandering in a daze with the knife that killed him in her hand, she is arrested. Knowing she did not kill him, her siblings
the family vigorously contests the charges. But, home on bail, she runs off to disappear forever. This actually sounds like the end of the story: She is arrested for killing someone and after being bailed out no one ever sees her again, which is an unsatisfying ending. You have to end your query with a statement of the stakes; this is not a statement of the stakes.
Spirits of Another Sort, complete at 75,000 words comma is a contemporary fantasy novel.
In it a loving family must confront forces they do not understand, leading them to question their basic beliefs about reality. You have to share this in your query.
Your query is too short, and it's not really written from the MC (Tamsin's) POV. The query needs to show us her feelings, her motivations. It's like she's been described from the outside and she has no feelings of her own.
Tamsin is the youngest of many siblings, but she has always felt alone. Unlike them she is scared of the outside world and turns to animals for companionship in place of people. But when her parents disappear in an accident, Tamsin feels even her animal friends aren't enough, so she runs away into the forest to find....
Like Bibilophyl pointed out, your story doesn't sound like a fantasy novel. Rather, it reads like a mentally disturbed young woman getting in trouble with the law. You say she believes the homeless man is a fairy king, but you never say if he is. It sounds like Tamsin's belief that he is a fairy king is just part of her delusion.
Go back and write your query to make it longer, write it from Tamsin's POV, help us understand her -- what does she want? Your query should address these questions:
1. Who is your MC?
2. What does your MC want/need?
3. What obstacles are in the way?
4. What will happen if the MC fails -- these are the stakes.
Right now your query does not address any of these questions. We don't eve know what Tamsin wants.
Query writing is hard, so don't give up.