Overall though in ambient music, you want your elements to be pretty powerful and not subtle. If you are going for something more soft, then I would probably use more leads and arpy plucks. But since this is more of an instrumental thing, I would go for more orchestral instruments in my opinion. Don't be afraid to expand on that. Good job!
Since I'm not really familiar with the genre, I would say pay close attention to your dB levels. Some of the frequencies sound squashed together on the bass, and I think you could highpass it and try to remove the low end that comes from the bass so it will allow the higher frequencies like the mids and highs to breathe more. Otherwise it sounds cluttered in my opinion. As for the drums, I think you could have the transients be more boosted so that you can hear it better.