The art is beautiful, but the expressions don't necessarily fit the tone of the dialogue. It sorta feels like could replace solemn, serious dialogue in the word-bubbles and the expressions could remain the same. Winks, smirks, grins, or even bored expressions as they effortlessly blow through hoards of mooks might be more appropriate for snarkiness.
While all of the individual drawings are great, I'm not sure how well they flow together? I'm not as experienced with vertical comics, but the panels feel like lots of large, isolated images that don't necessarily flow together to suggest action.
Size of a panel plays a major role in how it is percieved by the reader. We linger on large panels to take in all the details, and we brush over small panels. The majority of panels in this feel like large, full page illustrations, which means each of them takes a while to take in and scroll past.
There are some smaller panels, but it's not clear exactly how the choices are made. I think a good example of this is the panel of the three ship..plane...things. The ships are a dramatic, new element adding to the scene, and physically large, but their panel is small, so we only get a glimps of them. On the other hand, we get a 'full page' illustration after it featuring just the female protagonist's face. By the same token, many full page panels of just her chest area while we're getting dialogue through here key thingy (which is a cool element, btw).
There's also the issue of geography. This is very important for an action scene, so the reader can understand what's going on. We see the two heroes, we see the bad guys, but we don't see where they are in relation to one another. It's like a series of individual pinups of characters that aren't in the same physical space.
And, er, to be honest, I kinda have no idea what's going on? They're going to try to awaken 'Mother', and someone is trying to stop them?
Hope this is useful! Good luck!