I would start with the blurb, and put all that extra stuff (word count, pros, genre, contact) after it. The blurb is all they care about; the rest is details.
I'm not exactly sure what your question is. Short and to the point would definitely be my advice, but I don't think that means you have to strip the query of personality. I think it would be a mistake to aim the personality at the agent. They want to know what your story is about, and whether or not you have the skill to carry it through. It's probably good form to acknowledge that you know what the agent prefers to represent, but other than that, stick to business.
I have some suggestions:
Shadyia, a daring and passionate courtesan of the Silver Rose, finds herself caught between an enigmatic magician who searches for an ancient labyrinth, and a devious zealot who conspires to further a twisted agenda. Concealing both a forbidden romance with a fellow sister and a vengeful past, Shadyia must choose which man to favor. Her madam demands she please the zealot to keep the sisterhood safe from the wrath of his order, but Shadyia’s integrity requires she aid the magician. Will she follow him into the labyrinth and face the shadows of death, or betray him to save the sisterhood she cherishes above all?
Immediately as an agent, I'm thinking (written as I read),
- What is Silver Rose? Am I supposed to know this? This author is vague and may leave readers behind.
- Why do I care that the magician is searching for a labyrinth? What are the stakes?
- What "twisted agenda"? What does that have to do with the stakes? What is this author mentioning Shadyia as the main character and not then immediately delivering her stakes?
- Ah, "Shadyia must choose which man to favor." Now I see the beginning of a dilemma. I wonder why the author doesn't begin on this point? Will the novel have a long-winded opening?
- But then, the stakes kind of fizzle? That's it? She's just choosing which man to favor? That's not a plot. The whole book is based on that one dilemma? Nothing else happens? What are the actual stakes?
- Junk pile. Next.
I'm not saying there is no plot, but you haven't presented it in a way that makes me want to know what will happen. Give more, but not so much you give it away. You're holding WAY too much back, and the result is a query that is lacking personality, lacking endurance, lacking hook.
Shadiya's integrity demands that she aid the magician? WHY? That's the stakes (I assume). What happens if she disregards her integrity? Anything? I see that impending wrath is coming, but you haven't made me care at all. You blandly mention a romance with a sister and then never mention it again. Is that the plot? Or is that side information? If it's side information, it doesn't belong in the query. If it's plot, it needs to be weaved in so we know why this affects the stakes.
I don't see any faces in the sisterhood. I don't see actual people here. This is written like a newspaper blurb. You have to somehow make this Shadiya person so alive, so human, so incredibly real to me, in a few brief sentences, that I am as torn as she is. GIVE ME THE MEATY DETAILS OF HER DILEMMA. Don't say, "She is very torn. She doesn't know what to do." As an agent, I'm thinking, "Well, I would hope so."
Instead, say what makes her torn: "Here is Shadya and why you will be willing to spend 300 pages with her. Here is her problem. Here is how she confronts it. Here are three crazy things that happen to her, which put her in this bind which is so horrible it seems impossible she'll get out of it, and wouldn't you, Agent, like to know how she resolves this? Well, request some pages, because you will not believe how I get her out of it."
Only do that so well they don't hear you saying it. If the novel isn't an edge-of-your seat predicament like that, be CLEAR about what its strengths are, and take the agent so far he or she wants to see how it's resolved. That will be reams more constructive than trying to buddy up to the agent. You have to make that agent respect you for your story.
That's my advice, as elusively delivered as such advice ever is.
I'm certainly no expert. It's much easier to see this stuff in another person's query letter, than one's own. These are HARD to write.
I think it's a good exercise to write these on a work still in progress, actually, just to attempt to locate the trajectory of a work in progress. Please take my suggestions with the spirit intended, and toss whatever conflicts with your own gut.
Good luck.