You are describing in a good and detailed way how you have worked with the music and what decisions you have made in the process and why you made them in a clear and detailed way that is easy to understand, so that is good. You describe the background of your game and the ”general idea” of your game so I as a reader get a hum of what game you are making which is good so that I can draw connections with the music you are presenting. I really like the song you made, I think it really fit the theme of your game. I also think it is a good idea to go through as you did with inspiration from successful movies and games to after that make a song to fit your game. I think the way of how you worked and described your work is really good and I think you ended up getting music suitable for the game you are making. So good job!