Some things I noticed:
1) Your sluglines are messed up. Except for one.
It is properly written like: INT/EXT. LOCATION - TIME. So, you should write like, EXT. CABIN - SWAMP - EVENING.
As to writing EVENING, it should serve some serious purpose to the story so as to go specific with the timings.
2) Dialogs are decent to some extend.
3) Why BOY 1 and BOY 2? You can give them proper names.
4) I didn't understood the concept of the story. It's unresolved. I get it that it meant to represent the cycle of life and what happens when you die. Spooks take you. But why?
You added exposition to explain about the Swamp and the Spooks but I found it uneffective. At the end you mentioned about the OLD LADY which I suppose is SUZY and thereby indicating the recurring pattern of life in the Swamp. But I don't clearly get the backstory of the Swamp and didn't cared much about the characters.
You need a very strong outline and purpose for the story. The story sounds too undercooked at the moment.