Now you nailed it!
I love ambient sounds, and this one is really warmy. It's a little sad, just in the way I like it.
One thing I could notice is that it is basically in mono, so it gives a different feeling to the track. On days where you can find even 5.1 mixes, listening to something original in mono is surprising! This could have been a real trap and could have destroyed the track entirely, but you used it with the right track, it combined with the feeling.
Best track I've heard from you so far, great! :)