All i can say: The time of the deadline was too short from the beginning. This had to be 9-12 month. I saw this a few times in several C64 competitions were 6 month wasn't enough and they extended it. It leads to much better results. Hope you take this in mind for potential later Amiga compos.
edit: And LeCaravage just proved me right.
"I'm also afraid I can't present a valid entry at deadline time. Looks more like a bugged tech demo for the moment. It's not a problem of delay but I'm just too slow. So I'll continue working on the game and release a fully preview after deadline.
Good luck to other dudes, I can't wait to see your creations !"