After the high-profile replies you've got, my opinion is a bit light-weighted, but I'd still like to give it.
I think you have amazing talent, great taste in models (all the girls in your renders are hot), and plenty of dedication and attention to detail, considering the amount of poses and renders you made for each girl - and it's a lot of girls. Great games I've played boast no more than two. You have material for like four small games here.
The smart thing to do (yeah, like I would know, but anyway) wouldn't be scrapping the project altogether, that would be a waste. Sometimes the greatest achievers aren't experts at everything, but they excel at one thing: Getting surrounded by people that excel at the things you need. So what you urgently need is to collaborate with someone. A good writer would be my first guess. A solid and attractive storyline is what makes games good, hot scenes are just the cherry on the cake.
But for christ sake, don't throw this away. Get it done.