Honestly this is a neat comic, and I don't really get why it hasn't picked up more subs--have you been promoting it? Tapas won't do any promotion really, so like get this out there and in front of people. It's a nice comic. Give yourself a banner and give your account a user illo, that might also make it feel more robust. I don't think it's too hard to follow, although in the beginning I think it jumps around a bit and that got a little info-overload, but overall it's not too confusing.
I do think that your episodes are too long. If it's taking 2 months, just chop it in half, or in thirds. You have natural breaks in all of these episodes that I read where you could have spliced it. People on webtoons who do these sprawling epics every week have assistants, they've got a ton of experience drawing really fast. You're one person, and you will get much faster as you go. So I would just...make each update shorter. Long enough to still make an interesting arc, but shorter for how much work you've made for yourself. especially since it's...fully painted.
My biggest complaint that turns me off as a reader is the compression issues in the earlier episodes (I didn't read all of it, but I read like...half? Kind of looking at the art and the plot as well) all of your nice painting is hidden behind severe compression. You got some impressive artifacting going on, almost as if it's been compressed multiple times.
Either you are compressing it to be the smallest quality possible for these very, VERY long episodes (because I know the pain of having an episode too long for Tapas. It's pretty easy to hit that cap), or the program you are using isn't cutting the mustard. I'm not quite sure how it got that bad. Either way, I would find a better method and just recompile your first several episodes where this was pretty apparent, especially in the speech bubbles.
In that compression, there are places where the splicing is a little bit off between images. There's like this magenta line in Ep 5, for instance, that feels like it was more a compression error than something you wanted to be there. I feel like you saved your files much better later on (and also you had shorter updates, which might be part of the reason they were better quality files) and the compression isn't anything like in those first several updates.
But again, this is a nice comic. I can tell that your art is improving just so much in even the year you drew it, so if you keep it up I can see it being just so lovely in another year's time, but it's up to you since a year with only that many subs would be just very discouraging.