This track sounds like C418! Do you know him? He composed the soundtrack for Minecraft!
That being said, the atmosphere is definitely what you did best here. The sounds you used work really well together to achieve a serene and arcane tone which pulsates throughout the entire piece. Fit for an EP outro!
Never watched that movie. Is it a... classic film?
Now, my biggest gripe with this song is how long everything lasts. The intro, before any real melodic content arrives, is over 1 minute. On really low volumes, you really can't hear much anything up until that point. It feels like a completely silent stretch. And after everything builds up all nicely, it kinda stays that way for a good 3 minutes or so. That's a long time for a song to sound pretty much the same. And then at the end, you have an insanely long tail. It's more than half a minute.
There's no real melody in this song. There's nothing I can hum if I want to remember how this track goes. A melody may not have worked with the atmosphere you attempted to create, but it's still pretty much all pads. Decreases the memorability, you know?
Overall, great job. It may be overly long and stretched out, but for what it's got, it's a good conclusion for your EP! 4 stars, rated 5/5