The higher bells/marimbas-like instruments are arranged really well. They are non-obvious and complementary and use the stereo image really well. I like that it all feels really jungle-ish, with that kinda rim sound feeling more like a train in motion. Maybe the synth in the chorus feels a bit out of place, given the choice of the other instruments. I would have expected something like a pan flute or any "sustain" instrument that I could expect in this kind of setting. Or maybe something that reminds of a train whistle? Anyway, I really like this song!