I haven't described any game during this jam that could be described as 'beautiful,' but your game fits the bill. It's a knockout. I could look at it all day -- directly or indirectly, that is, while actively playing or simply having it as a background while I do other stuff. Amazing stuff.
About the music -- I wish something was driving musically herein, but I also appreciate what's here. It's atmospheric enough and compliments the game's beauty.
The gameplay and mechanics are fascinating -- I think they stand out because of how smooth movement is and how they align with the aforementioned attributes of the game. A suggestion: perhaps a quick on-screen tutorial would help accommodate new players.
Also, I'm not a stickler for theme tie-ins -- it shouldn't matter if the game is something wonderfully abstract as yours and might not have the direct, obvious tie to "You're Not Alone."
This game can be improved upon for sure, but it's also great as-is. Great job!