I played through the game and managed to get 3 endings, I'm not sure if there were more.I did a playthrough of the game and I will link it below if you are interested.
For it to be your first game I’d say you did well. The game felt fuzzy like it had motion blur on but that was the only thing I think needs to improve. I think you are at the stage of development where you can add some horror elements right when the player is getting comfortable. Good job so far. I’m glad I got all endings.