Overall, I think this was a good start. The characters are well-drawn and story seems simple enough to follow. And even though Jet wasn't featured for that long, he had a lot of personality. There are things that I do think weaken the overall result of the comic however, and I'll split them into art critiques and writing critiques.
Art
Let's start with art. The first things that stick out to me are the speech bubbles. They're too small. I read the episode on mobile and I had to pause and strain to read much of the text. Now I understand that it's partially a stylistic choice, since all of the bubbles are contained to the panels they correspond to, and also a formatting choice, since the comic is in page format. The thing is though, Tapas as a platform very much favors readability, so if one of your goals is to have the comic be some degree of popular, it's going to be a big turn off to readers if they can't see what they need to read. And it's not as though there's not enough room for bigger bubbles, the first panel features a cityscape establishing shot with plenty of open space to put text. So whatever font size it being used right now, increased by at least two or more: ex. 10 ----> 12 or 12 ----> 14.
Speaking of open space, the backgrounds are so bare. It looks like they were given up on. I understand wanting to get things done in a timely fashion and I'm not knocking the use of 3D models, but the background look like they're in a separate world from the characters. The characters have these harsh, flat black shadows and stark white highlight that are missing from the background, as if the only things that cast shadows and reflect light are the characters in the scene. The clothing has a slight bit of texture to it, but the walls and floors are bare and smooth. More texture needs to be added to the background; there should be trash in the alleyway and things on the walls. Things also mostly stay in the dark gray tone, and yes it's nighttime, but the lack of contrast makes things, characters, blur and fade into the background. Things lose impact if the art lacks contrast. Urie got punched but it was hard to tell because, one: there were very little action lines, and two: most importantly, Jet's gloves (and mask) are the same color as the background.
I want you and the artist to look at high contrast black and white comics, to learn from them. This doesn't mean abandoning the gray tone it just means incorporating what you do on the characters into the background so things look more cohesive. Here are some images I pulled for b/w Batman comics:
Lastly, the positioning of the 'camera' is too far! It's so far way at times resulting in little variety in panel compositions and a supreme sense of flatness. If this it going to be a gritty action comic, you need to get down and dirty with your choice of shots. Again, Urie got punched (and kicked) but both actions from Jet left little impact because of the choice of angle. If we were closer to ground and to Urie when he got kicked, I would have felt it. If we were behind Jet's shoulder when he punched Urie, I would have felt it. I make an action comic as well, I know how hard it is to come up with clear and interesting angles to show action from, but don't let the artist rest on their laurels; they need to experiment and refer to other action content whether that be movies, shows, or other comics, to make at least the action scenes more interesting.
Writing
There isn't really much to say about writing since this is the first episode of the first chapter. But what I will say is more of a personal grievance. It's a matter of showing versus telling. In a effort to show the reader that Poval is an idiot, we were told what the plan was and how it was going to be executed unnecessarily. To an extent I get it, the plan didn't go the way they expected with Poval's grappling hook snapping and him bein knocked unconscious, but the opening panels easily could've been cut in lue of just starting with them speechlessly ziplining to the building and then upon them descending to the lobby having a conversation showing the dichotomy between the characters and still ending with Poval's grappling hook snapping. That way we are both shown the plan and shown characters interactions.
Honestly, there are other specific things that are getting to me with some panels, but that'd bee too nitpicky, so I'll leave it at that. Again, overall good work. It's just a matter of polish and details and tightening up the script.
Edit: I didn't realize there was more than one episode, my mistake. Think of this as a general critique that comes from what I noticed on the first episode.