I like the relaxed pace. I like how the organ stays put at the start. The sound is quite muddy, but pleasantly warm and lo-fi. I believe you can have the pleasantness without the muddiness, I think for instance the overall sound is a bit bass-heavy. The biggest cripe is that, when the bass starts moving, there's some serious disharmony on the third chord especially, either the bass needs to change a bit or the other writing should follow the bass. I think I like how the bass moves, since it adds a new thing to the original, so the other writing should be adjusted. It's very close though! There's some interesting tension in there, but there's probably just a note or a couple there that make it sound jarring (in a bad way).
I also like those percussive bits right at the end. This reminds me of something I used to listen to long time ago, and I can't recall it at all. Pretty neat!
--Eino