You know, friend, I've seen you beating yourself up about your work's performance on a lot of threads now and I'm kind of concerned about you. I think that perhaps you've made an incorrect evaluation of why your work isn't doing so well as you want it to and I want to try to help you understand the underlying issue as best I can.
I don't think your art or your writing are the reason your work lacks traction. I think it's that the premise of your work has naturally limited appeal; it's a niche comic based around stuff you find sexy and fun but won't necessarily interest a lot of people who don't share your particular tastes.
It's a comic about lesbians, but as a lesbian when I tried to read it, I hated it; I don't want to read a comic about these cutesy, underage looking characters who behave like children and are constantly objectified with their jeans riding up like they're vacuum-packed around their crotches, it's just not my thing. If I'm gonna read something with sexy content (pretty rare for me), then I like f/f stories about adult women who behave like adult women (Roomie! is a sexy comedy with f/f content that I actually enjoy). There are some people who like that sort of "moe ecchi" stuff, but it's never going to be mainstream. Even in Japan it's not mainstream, but relies on a small but very intensely interested audience who will sink a lot of money into it and privately share it around with other people who are really into it.
It doesn't matter how great the art is or how well written the jokes are, and let me be clear here, I think the art is absolutely pro quality and very polished and the visual storytelling and the writing are perfectly fine; I do not want to read this comic, and no matter how much the art improves, I will never want to read this comic because I don't enjoy what the comic is about. Comics with sexy content rely on hitting certain fetish/fantasy groups, and tend to have very dedicated followings, but they're limited by the size of the fetish/fantasy group, which will create a sort of ultimate cap on the audience size.
I think rather than getting obsessed with making the art even more polished, what you should focus on is how and where you're marketing. You need to either make a comic with more widespread appeal to the kind of people already on Tapas (like a more work safe comedy comic, a more serious romance story, some sort of cute slice of life etc), find ways to get the most out of the audience you have (merch, spinoffs etc.) or you need to find the kind of places where guys who are into this kind of comic hang out (my bets would be 4Chan, Reddit and Tumblr). No matter how much you improve the art or the jokes, it's not going to suddenly convert all the girls who are on Tapas to read serious drama about beautiful brooding men into fans of a bawdy comedy about cutesy girls.