So @wingless has already given you a bunch of great advice! I'll see if I can follow up on that.
One of the things that stands out to me is the size of your panels. While it varies across the pages, I often see you using very large panels that don't actually need to be that large. I'm reading on desktop, not on mobile, so my experience is obviously different for that reason, but you often use panels that require an awful lot of scrolling to get through without accomplishing very much. Let's use S1E1: Sisters 04 as an example:
At the start of the episode, this fills my entire screen:
... which in itself isn't bad. But then I realise that's only half of the panel. This is the other half:
That's a lot of vertical space used to tell a very short piece of the story "Actually.. Omi... can I speak with you...? .... Alone?". There's a obviously a pause before the final word there, but you're using up a LOT of story-space what is essentially one line of dialogue.
And then we have the second panel:
... again, that's only half of it. I scroll down far enough that the speech-bubble leaves my screen, and I'm still left with this much panel:
For a single word of dialogue+shock.
Again, that's a lot of wasted vertical space. I realise that formatting for mobile views is different than formatting for desktops, but I imagine reading this on mobile view would ALSO mean that once you get to the bottom of the panel, the dialogue has disappeared from view.
These two panels also represent quite brief moments of the story - it's two lines of dialogue, and a moment of shock. There are no complex actions happening, there is no new environment being introduced, there's no new character stepping onto the stage - it's all characters we've already seen, having an exchange of words that takes at MOST ten seconds of real time.
A rule of thumb when making comics is that stuff that takes a short time to happen should use small panels, while stuff that takes a LONG time to happen should use larger panels - for the simple reason that bigger panels take a longer time for our eye to move across, so our brains naturally assume they take up more storytime.
This isn't always the case - sometimes you need a bigger panel for something that takes a short time because there's a lot happening in that short space of time - but in this example I've used, there isn't a lot happening. It's just two lines of dialogue.
I recommend experimenting a bit with the layout and sizing of your panels, to avoid needless vertical scrolling for your readers. It's usually a good idea to make sure that the whole of one panel fits onto the screen at once - unless it's intentionally a super-tall panel, because you happen to be drawing a panel where your character, say, falls off a cliff and we follow them down, or something.
