There's a very strange effect with the camera: it zooms out when you move forward and zooms in when you move back. The character is also far too slow.
However, I can see that there was an intention to tell a story, and perhaps that's where we should have focused more. For example, the ghosts could tell why they keep an object with them. This object could symbolize why they stay on earth-like one ghost with a cap, another with a bag, or yet another with glasses. These objects could represent a trace of their earthly past.
Courage for the future ;)