I'd mostly just like to see you iterate on what you've already made, if I'm being honest. I enjoy sleeping content and there is nearly none of it to be found. Its why I've replayed your game many times. I can't give much writing advice, as I only dabble, but as far as game dev advice, my main suggestion would be to just release what you do make, and accept the fact that you will never reach the quality you WANT to. It will never be perfect, but it can be finished.
Many people are happy to do basic proofreading for free. It can help avoid repetitious language and phrasing.
As far as visuals, I'd rather you stick with not having any? At the very least keep it ambiguous like the current picture. One of my favorite eroge games is Degrees of Lewdity, and it is very careful to never give explicit descriptions of what partners or love interests LOOK like. It'll describe mannerisms and actions and behavior, but leaves it up to the reader to fill in the blanks on appearance. It even allows you to choose their gender and genitals independently which if nothing else gives a fun angle of replayability.
It was also something I really liked about your game as well. The more specific you get with your description, the more you inevitably alienate people. Each trait becomes a way to whittle your audience down further. Blonde, cuts out the people that like brunettes and redheads. Call them small and soft and you're push away the people looking for big or fit. Part of the appeal of the medium of words is that you don't have to lock those things in. You can use language like "loving gaze" or "looks of worship" and the reader will happily put in their idealized form on the other side.