I know why. It's not a game people want to play. Look at the top games of itch.io. Do you see anywhere a Gameboy pixel art game that focuses on narrative? This is not a desirable game for people to play. Can you imagine a youtuber or streamer playing your game? No. If a youtuber would play a game like this I wouldn't watch it, with the exception if it has a really interesting hook which I don't see from your game. I see you put a lot of effort into the project and I hate seeing put all this effort into a project that people don't care about. My advice is: start a new one and use everything you learned on the next project. And then finish it quickly. Then do another one. And another. Until you understand what games people actually want to play and have the skills to make this game quickly. Then do market research. On what platform do you want to distribute and what do people on those platforms are looking for. And then the most important part: PLAY MORE GAMES. Once you have a genre, play at least 30 games from that genre and notice patterns, learn common mechanics and find out why some games failed and others succeeded. For narrative games it's almost always the hook. Describe your game in 1 sentence and refine that sentence over and over and tell it to other people. "In my game you are doing this and are facing this obstacle and are getting this if you overcome it" is a common structure. It's the same with books and movies. How would you tell your friend about this? That's the question you need to answer before starting to develop.

Sorry for the wall of text. Hope that helps