Stick with your vision, Arath, and don't be too bothered about appealing to absolutely everyone. There are plenty of Gary Stu games on this site, like WVM, for those who prefer a risk-free harem experience (deadly dull, in my view).Hi Hobo Bob,
I think it's clear from the game description and the posts I've made so far, this game is not for that crowd. If you're looking for a harem game where an unattached guy goes on vacation and bangs all the females present, maybe try something else.
I like the fact that you have developed a good range of distinct personalities in your characters, with different attitudes to sex, guilt and shame. The girls, in particular, have appealing and unappealing aspects to their personalities -- and I like that you haven't depicted them in dumb, two-dimensional ways (saint/slut). This gives you a chance to achieve real erotic tension, both in the relationship between the MC and the girls, and between the girls and the other guys. You could achieve a degree of erotic risk even in situations where your girlfriend remains true to you, if the MC chooses to make a move on one of the other girls.
Please also don't be put off by complaints that the MC is some sort of hopeless beta/omega just because he doesn't have huge muscles and a horse cock. I like the realism. Deploying a bit of empathy and decency goes a long way in real life, especially when the competition consists of flawed/dumb pseudo alphas.
So stick with your vision -- I tossed a buck your way via Patreon, and am happy to boost my support if you keep plugging away.