I'm sorry but when I see Aureole, I think areola. This is not the effect you're going for (I hope). When you are world building and naming things, please remember that your audience speaks and reads this work in English. Try not to name things in a way that evokes words that mean something entirely different unless you intend us to think that.
Rain, Huldah, Grishild and Amaya were born into this world, each with a different path to walk.
Well ok, but is anyone born any other way? Don't state the obvious. Get to the substance of the story. What happens?
Rain, a secluded priestess, unwittingly kills a man after chaneling a dream bred by communion with the Gods.
What? If I can't understand what you mean, it's a form rejection. If you'd sent this to me, I'd have stopped reading right here.
This is too general to be of much use in figuring out What Happens?
Also, the first clause does not have a connection to the sentence that follows.
Huldah, a deprived child prodigy, and Grishild, a disabled girl loved by a lesser-God, live their lives worlds apart, yet both are intimately connected to the deceased priestess. While their lives unfold, the end of Aureole draws nearer. Brought together late in life by Amaya, a young woman who bears a striking resemblance to Rain, Grishild and Huldah struggle to save her from the Gods before time runs out. But does Amaya represent repetition, or revolution?
I'm sorry, but this literally makes no sense to me. It will really help if you use short declarative sentences and focus on one character or two. You have four. You also have all four mentioned in one sentence with a pronoun. That means I have NO idea to whom the pronoun refers. I can guess I suppose, but a query letter isn't supposed to be me guessing at the plot.
Aureole is a generational work of speculative fiction which stands complete at 85,000 words, and draws heavily from mythology and gender theory. It is my first complete work of fiction, though I did write a well-received play for a local theater festival. Thank you for your consideration.
What is a generational work? I've never heard the term.
If this draws heavily from mythology, why don't I recognize any of the story?
I don't care how literary your work is. A query letter needs to tell me WHO the book is about; WHAT happens to them; the CHOICES they have to make; and, the CONSEQUENCES of the decision.
This is a form rejection.