Weird I was confident I left a comment here... Anyways it's a banger for me! I love the choice of having noise kinda glue together all the sounds in Downfall, and it's mixed to perfection. Not only that, but the overall melody is GORGEOUS. It's lovely! As for Caged, I was expecting something quite more dramatic/energetic in a way, but I like that you went the opposite way, kind of like in Dark Souls final boss where it's the opposite of what you would expect. It's great too! One concept I would have loved would have been to keep the noise in Caged and little by little free the song for the static, I think it would have been a great storytelling tool in a way with just a noise (yes you gave me ideas).
Anyways it's neat thanks for the OST!