I fully respect the angle to fucus on how the music works in game! I find that to be a very important aspect of how I compose for this Jam personally so I relate to others that do the same!
I think something to work on would just be to add more to each track. They feel a bit empty as is. It might be an issue with the mixing but I also think its the lack of a good percussive line. I think the first track is the best one because it had the most interesting percussion and a solid bassline so it felt more "full" than the other 2.