I love this! Watching the world go by while listening to ambient music is one of my favourite things to do IRL. I realise you're probably done with it at this point, but if you ever revisit the idea I have 2 suggestions: Allow the player to switch the music off independent of the sound effects (and vice versa), and let them decide which direction to travel in. Otherwise, this is beautiful, I can imagine letting it run while I read a text book to get the authentic "going home between terms at uni" feel.