I'm not saying that manga doesn't have this problem. Saying "but manga does this too!" does not mean that it is ok to do this in your comic. Manga has many problems too, but there are problems in your comic too.
Feminist critique below. You have been warned.
Frankly, it feels like you're objectifying these women, which is prevalent in both manga and western comics. You are treating them as sex objects, not characters, and you only really talk about their "beautiful" bodies. Shannon and Meghan are both female stereotypes (the "dumb blonde bimbo" and "bitchy brunette"), and you're presenting the prospect of being surrounded by rapists as "sexy", when it is NOT sexy, and it is a far too real terror for many women worldwide.
By presenting rape as "sexy", you are only adding to the huge problem that is rape culture. I know that it's a horror comic about being stalked by wannabe rapists, but you're sexualising the main characters too. As a woman, I hate the feeling of being sexualised and objectified. I'm guessing that you're a man, and that this comic is made to appeal to the male gaze, meaning that you and your readers will probably never experience this horrible feeling. (I am not saying that men are not objectified, but the problem is far more experienced by women.)
1 in 3 women in the UK are trapped in an abusive relationship at some point in their life.
Roughly 85,000 cases rape happen every year in the uk.
Girls as young as 4 have reportedly experienced FGM.
This is a serious problem, and by glamourising rape, you are not helping
Tapas' main demographic is female, so maybe that's why you're not getting many subscribers. Because you're reminding them of a fear that is just a story for you, but a real fear for them.
Want an example of a good story about women escaping a rapist, that doesn't objectify them, and has a strong message? Go watch Mad Max: Fury Road. Take notes.