Not sure this qualifies as a game as much as a single rather low quality porn video delivered to you in small (yet still too long) parts. It's still an overall inoffensive game and if the author's intent was solely to get their feet wet, then it's a respectable attempt.
Seeing how quickly the story rushes through the transformation and MC diving in headfirst into the raunchiest possible scenario, it's pretty clear that the intent here is really just a quick excuse to get into interracial scenes. Which is "fine", and with enough stuff added to it I could see it become a "decent-enough" alternative to scrolling through a bunch of porn gifs. That's about as much praise as I can give it in its current state.
For actual advice, I would probably make the videos of the scenes shorter, both for possible size issues but also because if someone wanted to watch back-to-back 4 min videos as they went through scenes, they probably would watch videos instead. Considering the writing and delivery isn't stellar, the next best thing would probably be to have a high enough variety of scenes to at least entertain on that front.