Overall:
- I like the story's atmosphere and it's interesting.
- Add more showing, reduce dialog.
- Edit and tighten the writing, eliminate extra words and make it snappier
Page 2: how is Z going to identify himself as a Seeker by talking to the alchemist? Is it part of the magic or is it obvious in their mannerisms?
P.3: Firevein - cool word!
In general, some of the writing feels like telling even though it's not telling as such. And you could be showing in the same number of words. For example, in pg. 4, the alchemist is instructing P. to find the relaxant by describing it through dialog. This feels like telling. Instead, you could do this: "the alchemist pointed a long red claw of a nail to the table (note characterization of alchemist), making Z and P turn to look. There, a blue swirl of liquid shone mysteriously inside a tall bottle tagged [insert name here]. Inside the blue swirl, tiny dots of light flowed around buffeted by an impossible current." This allows you to show the stuff to readers without the telling implied by dialog. Switch from dialog to graphical visuals as often as you can to create variation, especially when you have something worth showing off. Make characters point at stuff and then zoom on that stuff to show it to readers.
Trim the dialog by removing inessential words. For instance in pg. 4, instead of “I don’t mind you waiting in the front, but you can leave and come back if you want to.”, you could have "wait out front or return later." While in real dialog you get a lot of filler, in stories it's best to have short and snappy sentences. Or even better, show the alchemist closing shop while telling the two visitors to return in 10 minutes. Then Z can say directly "we'll wait out front." Even if you decided to dramatize/show a scene, you can summarize portions of it, use action instead of dialog, show visuals instead of dialog - in general make dynamic switches where a different writing tool can help you send the point across just as well. You know where Kelsier meets Preservation, he could've told him "i am very upset with you." What he did was way more powerful "he decked the man." Dialog is not always the better option. Experiment with tools.
Is the POV close 3rd? Perhaps you can make it closer by showing Z's reactions to what's going on because right now there's a bit of distance between him and the reader - I can't spot where it's coming from.
Pg. 6: once the alchemist returns, Z is talking to her directly, no more whispering and using Tempter. Is that a continuity error?
Pg. 6 last paragraph: "P. sighed" needs to be in a new paragraph since it's a different character performing the action.
Edit and streamline. For example pg.8 “Alcohol?” P. blinked, surprise, then noticed Z. was offering him the vial that he’d bought. “No, I don’t drink on job. And stop trying to change the subject!” can be written as "P. blinked surprised as Z. offered him the vial. "I don't drink on the job. Don't try to change the subject!""
Pg. 9: using curiosity as a superpower is very cool but I don't get how curiosity enables Z to make deductions. The deduction isn't very obvious because you haven't foreshadowed his conclusion by showing the tower or the place where they are. Instead of feeling like an 'of course!' moment, it feels improvised. I don't follow the logic of the deduction. Okay, the hiding would be close, sure, but why the tower, what makes it good for something illegal and how did Z know it must be something illegal? If this curiosity power offers exceptional deduction abilities, I need to follow the logic. If it enables something like clairvoyance, i need to know that Z sees images.
Pg. 11: conscious should be conscience
Pg. 12: before they're attacked, you could create some tension by having them speak quietly and not much, stop to listen, hold their breath, show the place and make it ominous etc. Rise stakes and tension with the monsters too, e.g. "their rabid bite could turn a person insane." Make me fear for the protag.
Pg. 13: motivations and character observations about each other don't need to be included in on-the-nose dialog. You can keep them internalized as close POV thoughts or show them through actions. For example, you can say "Z didn't mean to complain but that cut had been close. "I'd be more careful with that sword," he told the man, "if you want the customer alive and able to pay you."
Pg. 13: if Z is protected against harm like he says, why is he complaining/worried? It makes him sound a bit fussy. Now it's too late for me to fear for him especially if I didn't fear before the kerfuffle.
Pg. 14: why is P assuming Z hates whitchbeasts? It feels like it's only to give him an occasion to explain the conflict with the witch. But that conflict can be explained well as Z's inner thoughts in a closer POV. E.g. "the witch's presence nearby made Z's skin twitch and crinkle in distaste. The abomination used moonlight to twist life itself, spawning more dark creatures." You don't have to have Z explaining this to P, who presumably already knows about it since he lives in the same world.
Pg. 14: P's standpoint that witches don't distort life feels like a strawman in the presence of monstrous rats who attack people, especially after said rats tried to kill him.
Pg.15: If T. is an abomination and Z has such strong opinions on him, how come he's willing to adopt T as a pet? Normally people aren't so tolerant. Unless there's a story that motivates his choice.
Pg. 18: Z's thoughts during battle are long, orderly sentences. Write shorter, choppier sentences to heighten tension. Also he's guessing what his new partner wants him to do, which is improbable. More likely he'd think the man set him up for a trap or would just get scared.
Pg. 19: T is definitely my favorite character.
Pg.20: I still have trouble visualizing how everyone looks like.
Hope this helps, happy to answer questions.