So right away, I found the first panel excellently done. You, however, present a really rare case- The backgrounds are super excellent, and the main characters are not quite up to snuff. What I found distracting immediately was that the main characters had very fuzzy outlines with really oddly varying thicknesses, and the outlines were unusually dark compared to the beautiful washed-out backgrounds.
For an example, here's a panel I redid with more confident linework. There is a merit to scribbly lines in some cases, but WT will probably just see it as messy rather than stylistic.
Your more recent chapters have much better lineart but I do see you resorting to scribbling the lines in some panels, which is not a good habit to have! Here is an article of how to produce more confident lines. My friends draw 100 cylinders and 3 pages of lines daily and I have seen a really great improvement in their linework.
Now you're certainly not bad at shading, I think the style you use to shade is fine, but you seem to use a very washed out color palette which is fine, but you elect to shade in similarly washed-out colors.
Here's a screenshot from Violet Evergarden which has the same kind of misty and hazy vibe I feel like you're sort of going for, but still notice how dark the shading is while still giving a hazy vibe. The light colors are distinctly warm, and the shading is distinctly cool. It's not kind of blended together.
This was the panel I'm looking at in particular where I think that being more confident in your shading would go a long way. We have a light source coming from the right side of the screen, yet the shading on the characters is kind of blended everywhere, kind of robbing us of a really beautiful atmosphere.
Here's an edit of the panel, I pushed it about 50% further than what it probably should be to make it really apparent what I'm doing with the shading. We have distinctly cool and sharp shadows, combined with a hazy warm light source. Having some confidence in your shadows rather than kind of airbrushing around in the general area of where they should be will go a LONG way!
Anyway, reading the story, though I'm not particularly interested by episode 3 (three episode rule, I talked about it in an earlier critique), I find your paneling, grammar, speech bubble placement, and consistency+quality of character interactions to be very high quality. I think you should condense the events of episode 1-6 into episodes 1-3. 3-6 is kind of where the events that establish the plot happen, and most people click away at episode 3 so having early events not in the immediate three episodes isn't too good. Also I kind of feel like even by episode 6 I don't really know what the story is about- There's magic, some kind of disease, and werecats? Though there are some things that should be revealed slowly, making sure the audience knows solidly what your story is about right away and how all the aspects "link" together is super important.
I think with some elbow grease you can get this series up to a potential featured quality. Good luck!