A fantastic little game!
I'm a big fan of the narrative focus here. The reaper guy bringing the souls down a trip of their lives after death is really bittersweet to see, especially after the soul commented on it.
The only thing I would try to work on would be getting a theme for the actual levels themselves. I don't mean in design, but I mean getting access to a tile set to use for the stages.
The art that WAS there, it's got a lot of charm! Passing by each photo and taking in the style was a reward in and of itself.
Overall, I'm a big fan!