I finished reading what you've posted so far.
In general, the art is strong and interesting. Characters are distinct and consistent, I can usually tell what's going on, and the world setting is appropriately barren and mysterious. The biggest part of the art to improve I think is your inking, it feels like you're going more or less straight from digital sketch to colors, when a second pass over the linework with confident, natural lines would go a long way to making the world seem more dynamic and immersive. The artstyle is inconsistent overall, but that comes with imo dramatic improvements from chapter to chapter, so I'm not complaining. You're clearly improving!
One aspect to focus on in a shonen-style comic is the visual action - many poses were stiff and flat. I could tell what was happening, but the energy was just getting sucked out of the poses. See if you can exaggerate the line of action. If you're using 3D models, zoom in and widen that field of view.
The second biggest area of focus should be character expressions. I know the MC isn't scared of death and is bored by dismemberment, but by the dialogue she clearly has strong emotions about Xun and obtaining her objective, pushing your character expressions so that they aren't all vaguely bored-looking would help sell the stakes of your techno-apocalyptic hellworld.
I prefer pages to scroll comics, but there wasn't any excessive scrolling or one-word speech bubbles against solid colors (my pet peeves), so your paneling is much better than most scroll comics.
Story-wise, the MC and the blue medic Xun are interesting enough. I like a lot of mystery and don't mind waiting - but the audience needs to know what the goal of these goal-driven characters is. No specifics are needed, but the MC needs to get to Polaris...why? It doesn't need to be specific, just a vague category, like "answers," or "family," or "vengeance," or whatever. Because if your zombie robot girl isn't afraid of dismemberment and is mildly inconvenienced by death, the reader needs to know what does motivate her.
You have a decent action-to-dialogue ratio so far for your genre.
It's a strong start! You've done good work so far and I hope you keep things up for the long haul! I'll be rooting for you!