This definitely has a lost/mysterious vibe to it, I think you did a great job at that for sure! The chord progression I think did this trick well to begin with, by having it alternate mostly between two chords throughout. But the instruments you used as well as the ambiences really amplified this feeling beautiful. It's also just a really pretty selection, that kinda makes the song also feel dreamy and maybe even hopeful I'd say. Just really beautiful in general, once again keep up the awesome work!